2497

This number is a composite.

Single Curio View:   (Seek other curios for this number)
The sum of the first 2497 positive repunits (i.e., 1+11+111+1111+11111+...) is a 2497-digit prime number. Note that 2497 is the smallest number for which this happens. [Antonious]

Submitted: 2019-01-19 11:02:20;   Last Modified: 2019-01-19 15:43:27.
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell