4368

This number is a composite.

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

+ 4368 = π(4! - 4) + π(3! - 3) + π(6! - 6) + π(8! - 8). Note that 4368 is the only number with this property. [Firoozbakht]

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