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 2021-09-15, 03:06 #10 T.Rex     Feb 2004 France 2·33·17 Posts I found this papier very interesting: https://faculty.math.illinois.edu/~j...nneBenford.pdf First, it seems to say that Mersenne primes are random. Second, it means that looking at Mersenne exponents starting with 1,2,3, or 4 generates 3 times more primes than exponents starting with 5,6,7,8, or 9. Thus, should the GIMPS look first at these 1-4..... exponents? Code: 1 13 2 10 3 7 4 5 5 2 6 3 7 2 8 3 9 2 Last fiddled with by axn on 2021-09-15 at 10:35 Reason: duplicate url