This number is a prime.

                                                              999 9999998987

Single Curio View:   (Seek other curios for this number)
The largest example with the smallest emirp number of digits (13) of an emirp with an emirp sum of digits. 9999999998987 is prime; its reversal 7898999999999 is prime; 9+9+9+9+9+9+9+9+9+8+9+8+7 = 113 is prime; the reversal 311 is prime. [Post]

Submitted: 2009-11-21 00:37:03;   Last Modified: 2009-11-22 23:01:49.
Printed from the PrimePages <primes.utm.edu> © G. L. Honaker and Chris K. Caldwell