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74359...53743 (70-digits) (another Prime Pages' Curiosity) |
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GIMPS has discovered a new largest known prime number: 282589933-1 (24,862,048 digits)
The concatenation of the first twenty-five primes with sum of digits congruent to 0(mod 7). Curiously, it remains prime if we concatenate it in the reverse order. Note that the sum of digits of 25 and 70 are both congruent to 0(mod 7). [Antonious]
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