307031012708191

This number is a prime.

                                                            30703 1012708191

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The concatenation of the first 5 Mersenne primes, with an extra 0 inserted between each pair of numbers, yields this prime. [Hartley]

Submitted: 2003-03-17 03:44:20;   Last Modified: 2008-01-30 11:28:00.
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