4708

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

+ 4708 = π(4!+7!+0!+8!). Note that 4708 is the second and only multi-digit number with this property. [Firoozbakht]

Printed from the PrimePages <primes.utm.edu> © G. L. Honaker and Chris K. Caldwell