91744613

This number is a prime.

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91744613 = prime(prime(9!+1!+7!+4!+4!+6!+1!+3!)). It is the largest and second number with this property. [Firoozbakht]

Submitted: 2009-07-31 23:58:48;   Last Modified: 2009-08-01 08:31:08.
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