6560

This number is a composite.

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6560 = 2^5 * 5 * 41 is the smallest integer n where n and n+1 (6561 = 3^8) are both products of 7 or more primes. [Post]

Submitted: 2009-07-10 01:38:07;   Last Modified: 2009-07-10 08:37:10.
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