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GIMPS has discovered a new largest known prime number: 2^{82589933}1 (24,862,048 digits) The two prime factors of 135 are 3 and 5. Note that, starting with 3, the sum of 5 consecutively squared integers equals 135. [Cramer] Both 1!+3!+5! and 1!!+3!!+5!! are primes. [Jevtic]
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