171

This number is a composite.

Just showing those entries submitted by 'Firoozbakht': (Click here to show all)

+ π(1)!*π(2)!*π(3)!*...*π(171)! - 1 is a 3857-digit prime. [Firoozbakht]

Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell