16196...59409 (51-digits)

This number is a prime.

                    1 6196361784 1024136914 4416001681 3844722579 2190259409

Just showing those entries submitted by 'Gaydos': (Click here to show all)

+ The concatenation of the first fourteen squares that are reverse primes is a prime number. [Gaydos]

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