444444

This number is a composite.

Single Curio View:   (Seek other curios for this number)
The smaller of two 6-digit repdigit numbers such that the product of itself and all truncations of itself plus one is prime, i.e., 444444*44444*4444*444*44*4+1=6859617106413367297. The other is 666666. [Loungrides]

Submitted: 2016-02-24 14:31:23;   Last Modified: 2018-05-26 12:49:58.
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell