372973
This number is a prime.
sigma(372973) = 3! + 7! + 2! + 9! + 7! + 3!. The prime
372973 is the only number greater than one with this property. [Firoozbakht]
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell
This number is a prime.
sigma(372973) = 3! + 7! + 2! + 9! + 7! + 3!. The prime
372973 is the only number greater than one with this property. [Firoozbakht]