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GIMPS has discovered a new largest known prime number: 2^{82589933}1 (24,862,048 digits) Just showing those entries submitted by 'Beedassy': (Click here to show all) The first prime repfigit number. A repfigit (repetitive fibonaccilike digit) number is an ndigit integer N with the following property: if a Fibonaccilike sequence (in which each term in the sequence is the sum of the n previous terms) is formed, with the first n terms being the decimal digits of the number N, then N itself occurs as a term in the sequence. For example, if the digits of 19 start a Fibonaccilike sequence, then 19 appears as a term: 1, 9, 10, 19. These are also known as Keith numbers. [Beedassy]The largest prime that is palindromic in Roman numerals alphabetically is XIX (19). [Beedassy] 19 is the "age of majority" adopted under federal jurisdiction in two US states, viz., Nebraska, Alabama. [Beedassy] The index p of the largest known Mersenne prime M_{p} = 2^{p}  1 having an associated perfect number M_{p}*2^{p  1} that is short of a prime by 1. [Beedassy] The number of topologically distinct planar configurations without discontinuities that are possible using six matches. [Beedassy] The number of letters in the anagrammatic title "A Superb Mosaic  Dare it !" that fittingly qualifies the "PRIME CURIOS DATABASE" with a poetic touch. [Beedassy] Pandigital palindromic primes start as 19digit numbers. [Beedassy]
(There is one curio for this number that has not yet been approved by an editor.)
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