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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 'Capelle': (Click here to show all) 16 is the smallest square which is difference of two prime squares. [Capelle]The smallest square whose reverse is prime. [Capelle] 2^{22} is the smallest number n such that 3 + n, (3*5) + n, (3*5*17) + n, (3*5*17*257) + n, (3*5*17*257*65537) + n are all primes. Note that 3, 5, 17, 257 and 65537 are the known Fermat primes, with the property (F_{0}*F_{1}*F_{2}*...*F_{n1}) + 2 = F_{n} [Capelle]
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