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GIMPS has discovered a new largest known prime number: 2^{82589933}1 (24,862,048 digits) 1197 = 3^2 * 7 * 19 is the smallest integer containing as substrings all maximal prime powers that divide it (7, 9, 19). [Post] The thousandth composite number (1197) is made of the same three digits as the thousandth prime (7919). [Gaydos]
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