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7304 Namiki
73 may refer to: * 73 (number) * one of the years 73 BC, AD 73, 1973, 2073 * 73 (magazine), ''73'' (magazine), a United States-based amateur radio magazine * 73 Best regards, a popular Morse code abbreviations, Morse code abbreviation * ''No. 73'', a British 1980s children's TV show *Nickname for the Boeing 737 airplane *73 Bristol–Cribbs Causeway, a bus route in England See also * List of highways numbered * {{Numberdis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
73 (number)
73 (seventy-three) is the natural number following 72 and preceding 74. In English, it is the smallest natural number with twelve letters in its spelled out name. In mathematics 73 is the 21st prime number, and emirp with 37, the 12th prime number. It is also the eighth twin prime, with 71. It is the largest minimal primitive root in the first primes; in other words, if ''p'' is one of the first one hundred thousand primes, then at least one of the numbers is a primitive root modulo ''p''. 73 is also the smallest factor of the first composite generalized Fermat number in decimal: , and the smallest prime congruent to 1 modulo 24, as well as the only prime repunit in base 8 (1118). It is the fourth star number. Notably, 73 is the sole Sheldon prime to contain both ''mirror'' and ''product'' properties: *73, as an emirp, has 37 as its dual permutable prime, a mirroring of its base ten digits, 7 and 3. 73 is the 21st prime number, while 37 is the 12th, which is a se ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
