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GIMPS has discovered a new largest known prime number: 282589933-1 (24,862,048 digits)

+ The smallest prime formed from the first n first digits of the composites, i.e., {4, 6, 8, 9, 1, 1, 1, 1, ... }. Here, n = 8. Note that n = 9 is prime also. Can you find the next? [Gaydos]




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