7393913311133193937

This number is a prime.

                                                        739391331 1133193937

+ The only palindromic prime less than a googol formed by inserting n 1’s, (n=3), between the largest right-truncatable prime, i.e., 73939133 and its reversal. [Loungrides]

Printed from the PrimePages <primes.utm.edu> © G. L. Honaker and Chris K. Caldwell