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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 'Gallardo': (Click here to show all) 197 is the sum of digits of all twodigit primes. [Gallardo]The smallest multidigit prime p that makes 10^p9 prime. Note that the next prime (199) has the same property. They are twin primes! [Gallardo]
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