6648647
This number is a prime.
Single Curio View: (Seek other curios for this number)
6648647 is a prime such that 6*648647+1, 66*48647+1, ... , 664864*7+1 are all prime numbers. Is it the largest with
such property? Found by Adam Stinchcombe and Farideh Firoozbakht, 2003. [Rivera]
Submitted: 2018-09-08 16:12:55; Last Modified: 2019-01-29 19:35:56.
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell