22781...00001 (8973-digits)

This number is a prime.

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1234567*420^3418+1 is prime. 420 is the smallest number divisible by the numbers 1 through 7. Also, summing the factorials of the digits of 3418 produces the prime 40351, while summing the factorials of the digits of 1234567*420^3418+1 produces the prime 219770503. [Earls]

Submitted: 2004-08-29 07:42:13;   Last Modified: 2008-01-30 11:28:00.
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