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GIMPS has discovered a new largest known prime number: 2^{82589933}1 (24,862,048 digits) 858 = 2 * 3 * 11 * 13 is the smallest palindrome with 4 distinct prime factors. Note that the reversal of each is prime. [Post] Smallest palindromic prime p such that p1, p+1, p5, and p+5 are all primes. [Sariyar]
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