This number is a prime.

                                                                2 6004456337

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The prime P = 26004456337 remains composite if you append to the left of P any integer A for 1<=A<=225, while A.P is prime for A=226. Found by Jim Fougeron, 2002. [Rivera]

Submitted: 2018-08-02 14:47:38;   Last Modified: 2019-01-29 16:43:06.
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