245

This number is a composite.

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The expression 1*3*5*7*11*13*15*...*243*245 +/-2 produces the third and largest known pair (241-digits each) of "cousin" primes (that differ by 4) of this type. [Rivera]

Submitted: 2020-05-27 20:40:31; Last Modified: 2020-05-27 23:42:19.