6571

This number is a prime.

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2 + 3 + 5 + ... + 6563 = 6569 (mod 6571). Note that 6563, 6569, and 6571 are consecutive primes and 6571 is the largest known prime with this property. [Firoozbakht]
Submitted: 2009-11-08 09:32:11;   Last Modified: 2009-11-08 20:03:25.
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