64 (another Prime Pages' Curiosity)
 Curios: Curios Search:   Participate: GIMPS has discovered a new largest known prime number: 282589933-1 (24,862,048 digits) If you consider the alphabet as an extension of the decimal system (base 36), the difference in the numerically expressed words SIXTY and FOUR is equal to 47180851, which is prime. [Nothdurft] The number 264 + 1 was factored by Landry in 1880. [Kraitchik] Using A = 1, B = 2, ..., Z = 26, the sum of all the letter values in the word names of the numbers from 1 to 64 is a prime (7369). If 0 (whose alpha-numeric value is 64) is included, the sum is yet another prime (7433). [Trotter] The smallest power of 2 with no prime neighbor. [Necula] The smallest square that creates two primes if concatenated with its previous and next squares, i.e., 6449, 6481. [Loungrides] The first occurrence of a composite number whose factorization with exponents contains exactly one circular loop on each side of the equals sign (64 = 2^6). [Honaker] (There is one curio for this number that has not yet been approved by an editor.)   To link to this page use /curios/page.php?number_id=543 Prime Curios! © 2000-2019 (all rights reserved)  privacy statement   (This page was generated in 0.0100 seconds.)