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666 (number)
666 (six hundred ndsixty-six) is the natural number following 665 and preceding 667. In Christianity, 666 is called the " number of the beast" in (most manuscripts of) chapter 13 of the Book of Revelation of the New Testament.Beale, Gregory K. (1999). The Book of Revelation: A Commentary on the Greek Text. Grand Rapids, Michigan: Wm. B. Eerdmans Publishing. p. 718. . Retrieved 9 July 2012. In Mathematics 666 is the sum of the first 36 natural numbers (\sum_^ i, i.e. ), and thus it is a triangular number. Because 36 is also triangular, 666 is a doubly triangular number. Also, ; 15 and 21 are also triangular numbers, and . In base 10, 666 is a repdigit (and therefore a palindromic number) and a Smith number. A prime reciprocal magic square based on 1/149 in base 10 has a magic total of 666. The prime factorization of 666 is 2 ⋅ 32 ⋅ 37. Also, 666 is the sum of the squares of the first seven primes: 2^2 + 3^2 + 5^2 + 7^2 + 11^2 + 13^2 + 17^2 The number of integers whi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chinese Numeral
Chinese numerals are words and characters used to denote numbers in Chinese. Today, speakers of Chinese use three written numeral systems: the system of Arabic numerals used worldwide, and two indigenous systems. The more familiar indigenous system is based on Chinese characters that correspond to numerals in the spoken language. These may be shared with other languages of the Chinese cultural sphere such as Korean, Japanese, and Vietnamese. Most people and institutions in China primarily use the Arabic or mixed Arabic-Chinese systems for convenience, with traditional Chinese numerals used in finance, mainly for writing amounts on cheques, banknotes, some ceremonial occasions, some boxes, and on commercials. The other indigenous system is the Suzhou numerals, or ''huama'', a positional system, the only surviving form of the rod numerals. These were once used by Chinese mathematicians, and later by merchants in Chinese markets, such as those in Hong Kong until the 1990s, but we ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Twin Primes
A twin prime is a prime number that is either 2 less or 2 more than another prime number—for example, either member of the twin prime pair (41, 43). In other words, a twin prime is a prime that has a prime gap of two. Sometimes the term ''twin prime'' is used for a pair of twin primes; an alternative name for this is prime twin or prime pair. Twin primes become increasingly rare as one examines larger ranges, in keeping with the general tendency of gaps between adjacent primes to become larger as the numbers themselves get larger. However, it is unknown whether there are infinitely many twin primes (the so-called twin prime conjecture) or if there is a largest pair. The breakthrough work of Yitang Zhang in 2013, as well as work by James Maynard, Terence Tao and others, has made substantial progress towards proving that there are infinitely many twin primes, but at present this remains unsolved. Properties Usually the pair (2, 3) is not considered to be a pair of twin primes. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Integer
An integer is the number zero (), a positive natural number (, , , etc.) or a negative integer with a minus sign (−1, −2, −3, etc.). The negative numbers are the additive inverses of the corresponding positive numbers. In the language of mathematics, the set of integers is often denoted by the boldface or blackboard bold \mathbb. The set of natural numbers \mathbb is a subset of \mathbb, which in turn is a subset of the set of all rational numbers \mathbb, itself a subset of the real numbers \mathbb. Like the natural numbers, \mathbb is countably infinite. An integer may be regarded as a real number that can be written without a fractional component. For example, 21, 4, 0, and −2048 are integers, while 9.75, , and are not. The integers form the smallest group and the smallest ring containing the natural numbers. In algebraic number theory, the integers are sometimes qualified as rational integers to distinguish them from the more general algebraic integers ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Apocalypticism
Apocalypticism is the religious belief that the Eschatology, end of the world is imminent, even within one's own lifetime. This belief is usually accompanied by the idea that civilization will soon come to a tumultuous end due to some sort of catastrophic global event. Apocalypticism is one aspect of eschatology in certain religions—the part of theology concerned with the final events of human history, world history, or the ultimate destiny of humanity (societal collapse, human extinction, etc.). The religious versions of these views and movements often focus on cryptic revelations about a sudden, dramatic, and cataclysmic intervention of God in history; the judgment of humanity; the salvation of the faithful elect; and the eventual rule of the elect with God in a renewed heaven and earth. Arising initially in Zoroastrianism, apocalypticism was developed more fully in Jewish eschatology, Judaic, Christian eschatology, Christian, and Islamic eschatology, Islamic eschatological ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Devil In Christianity
In Christianity, the Devil is the personification of evil, who rebelled against God in an attempt to become equal to God himself. He is depicted as a fallen angel, who was expelled from Heaven at the beginning of time, before God created the material world, and is in constant opposition to God. The devil is identified with several figures in the Bible including the serpent in the Garden of Eden, Lucifer, Satan, the tempter of the Gospels, Leviathan, and the dragon in the Book of Revelation. Early scholars discussed the role of the devil. Scholars influenced by neoplatonic cosmology, like Origen and Pseudo-Dionysius, portrayed the devil as representing deficiency and emptiness, the entity most remote from the divine. According to Augustine of Hippo, the realm of the devil is not nothingness, but an inferior realm standing in opposition to God. The standard Medieval depiction of the devil goes back to Gregory the Great. He integrated the devil, as the first creation of God, in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Antichrist
In Christian eschatology, the Antichrist refers to people prophesied by the Bible to oppose Jesus Christ and substitute themselves in Christ's place before the Second Coming. The term Antichrist (including one plural form) 1 John ; . 2 John . is found five times in the New Testament, solely in the First and Second Epistle of John. The Antichrist is announced as the one "who denies the Father and the Son." The similar term ''pseudokhristos'' or "false Christ" is also found in the Gospels. In Matthew (chapter 24) and Mark (chapter 13), Jesus alerts his disciples not to be deceived by the false prophets, who will claim themselves as being Christ, performing "great signs and wonders". Three other images often associated with the singular Antichrist are the "little horn" in Daniel's final vision, the "man of sin" in Paul the Apostle's Second Epistle to the Thessalonians, and the Beast of the Sea in the Book of Revelation. Etymology ''Antichrist'' is translated from the combin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Digamma
Digamma or wau (uppercase: Ϝ, lowercase: ϝ, numeral: ϛ) is an archaic letter of the Greek alphabet. It originally stood for the sound but it has remained in use principally as a Greek numeral for 6. Whereas it was originally called ''waw'' or ''wau'', its most common appellation in classical Greek is ''digamma''; as a numeral, it was called ''episēmon'' during the Byzantine era and is now known as '' stigma'' after the Byzantine ligature combining σ-τ as ϛ. Digamma or wau was part of the original archaic Greek alphabet as initially adopted from Phoenician. Like its model, Phoenician waw, it represented the voiced labial-velar approximant and stood in the 6th position in the alphabet between epsilon and zeta. It is the consonantal doublet of the vowel letter upsilon (), which was also derived from waw but was placed near the end of the Greek alphabet. Digamma or wau is in turn the ancestor of the Latin letter F. As an alphabetic letter, it is attested in archaic a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stigma (letter)
Stigma (ϛ) is a ligature of the Greek letters sigma (Σ) and tau (Τ), which was used in writing Greek between the Middle Ages and the 19th century. It is also used as a numeral symbol for the number 6. In this unrelated function, it is a continuation of the old letter digamma (originally Ϝ, cursive form ), which had served as a numeral since antiquity and was conflated with the σ-τ ligature in the minuscule handwriting of the Middle Ages. History and use The στ ligature (, ) was one of many ligature forms that came into widespread use as part of the minuscule writing style of Greek from the 9th and 10th centuries onwards. It is based on the lunate form (Ϲ) of the letter sigma. With many other ligatures, it was used to print Greek during the early-modern era. Between the 18th and 19th centuries, the use of ligatures in print gradually diminished. The στ ligature was among the last to go, around the middle of the 19th century. The name, ''stigma'' (), is original ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Xi (letter)
Xi is the 14th letter of the Greek alphabet (uppercase Ξ, lowercase ξ; el, ξι), representing the voiceless consonant cluster . It is pronounced in Modern Greek, and generally or in English. In the system of Greek numerals, it has a value of 60. Xi was derived from the Phoenician letter samekh . Xi is distinct from the letter chi, which gave its form to the Latin letter X. Greek Both in classical Ancient Greek and in Modern Greek, the letter Ξ represents the consonant cluster /ks/. In some archaic local variants of the Greek alphabet, this letter was missing. Instead, especially in the dialects of most of the Greek mainland and Euboea, the cluster /ks/ was represented by Χ (which in classical Greek is chi, used for ). Because this variant of the Greek alphabet was used in Magna Graecia (the Greek colonies in Sicily and the southern part of the Italian peninsula), the Latin alphabet borrowed Χ rather than Ξ as the Latin letter that represented the /ks/ cluster ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chi (letter)
Chi (uppercase Χ, lowercase χ; el, χῖ) is the 22nd letter of the Greek alphabet. Greek Pronunciation Ancient Greek Its value in Ancient Greek was an aspirated velar stop (in the Western Greek alphabet: /ks/). Koine Greek In Koine Greek and later dialects it became a fricative (/) along with Θ and Φ. Modern Greek In Modern Greek, it has two distinct pronunciations: In front of high or front vowels ( or ) it is pronounced as a voiceless palatal fricative , as in German ''ich'' or like the ''h'' in some pronunciations of the English words ''hew'' and ''human''. In front of low or back vowels (, or ) and consonants, it is pronounced as a voiceless velar fricative (), as in German ''ach'' or Spanish ''j''. Transliteration Chi is romanized as in most systematic transliteration conventions, but sometimes is used. In addition, in Modern Greek, it is often also romanized as or in informal practice. Greek numeral In the system of Greek numerals, it has a value of 6 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Koine Greek
Koine Greek (; Koine el, ἡ κοινὴ διάλεκτος, hē koinè diálektos, the common dialect; ), also known as Hellenistic Greek, common Attic, the Alexandrian dialect, Biblical Greek or New Testament Greek, was the common supra-regional form of Greek spoken and written during the Hellenistic period, the Roman Empire and the early Byzantine Empire. It evolved from the spread of Greek following the conquests of Alexander the Great in the fourth century BC, and served as the lingua franca of much of the Mediterranean region and the Middle East during the following centuries. It was based mainly on Attic and related Ionic speech forms, with various admixtures brought about through dialect levelling with other varieties. Koine Greek included styles ranging from conservative literary forms to the spoken vernaculars of the time. As the dominant language of the Byzantine Empire, it developed further into Medieval Greek, which then turned into Modern Greek. Literary Koine ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Beast (Revelation)
The Beast ( grc-x-koine, Θηρίον, ) may refer to one of two beasts described in the Book of Revelation. In Revelation 13:1-10, the first beast (interpreted as the Antichrist) rises "out of the sea" and is given authority and power by the dragon. This first beast is initially mentioned in Revelation 11:7 as emerging from the abyss. His appearance is described in detail in Revelation 13:1–10, and some of the mystery surrounding it is revealed in Revelation 17:7–18. In Revelation 13:11–18, the second beast (the false prophet) comes "out of the earth" and forces everyone on earth to worship the first beast. In their fight against God, the two beasts join forces with the dragon. They persecute the "saints" and those who do not "worship the image of the beast f the sea and influence the kings of the earth through three unclean spirits to gather for the battle of Armageddon. The two beasts are defeated by Christ and are thrown into the lake of fire mentioned in Revelatio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
