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GIMPS has discovered a new largest known prime number: 2^{82589933}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 2^{64} + 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 alphanumeric value is 64) is included, the sum is yet another prime (7433). [Trotter] The smallest power of 2 with no prime neighbor. [Necula]
(There are 3 curios for this number that have not yet been approved by an editor.)
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