1310s In Japan
131 may refer to: *131 (number) *AD 131 *131 BC *131 (album), the album by Emarosa *131 (MBTA bus), the Massachusetts Bay Transportation Authority bus. For the MBTA bus, see 131 (MBTA bus). *131 (New Jersey bus), the New Jersey Transit bus {{numberdis ...
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131 (number)
131 (one hundred [and] thirty-one) is the natural number following 130 (number), 130 and preceding 132 (number), 132. In mathematics 131 is a Sophie Germain prime, an irregular prime, the second 3-digit palindromic prime, and also a permutable prime with 113 (number), 113 and 311 (number), 311. It can be expressed as the sum of three consecutive primes, 131 = 41 + 43 + 47. 131 is an Eisenstein prime with no imaginary part and real part of the form 3n - 1. Because the next odd number, 133, is a semiprime, 131 is a Chen prime. 131 is an Ulam number. 131 is a full reptend prime in base (exponentiation), base 10 (and also in base 2). The decimal expansion of 1/131 repeats the digits 007633587786259541984732824427480916030534351145038167938931 297709923664122137404580152671755725190839694656488549618320 6106870229 indefinitely. In the military * Convair C-131 Samaritan was an American military transport produced from 1954 in aviation, 1954 to 1956 in aviation, 1956 * VFA-131, Strike Fi ...
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