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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 'Silva': (Click here to show all)
There are 13 composite numbers between 13 and its reversal. [Silva] The longest name of a book of the KJV Bible is Thessalonians with 13 letters. [Silva] The smallest prime formed from consecutive odd digits. [Silva] 13!+31!1 is prime. [Silva] The smallest prime sum of semiprimes. [Silva] The only Fibonacci prime equal to the sum of the squares of two consecutive Fibonacci primes. [Silva] 13 squared equals the sum of the first five emirps. [Silva] The number of fivedigit primes formed from the five nonzero nonprime digits. [Silva] 13 + (1+3) is the next emirp. The only twodigit emirp with that property. [Silva]
(There are 6 curios for this number that have not yet been approved by an editor.)
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