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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 'Hartley': (Click here to show all)
As at February 2003, 3 and 13 are the only known prime numbers n for which the number of nominoes is also prime. [Hartley] 3 and 103 are prime, as are 3*2^1031 and 103*2^31. There is no other pair of primes less than 1000 with this property. [Hartley]
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