10000...53383 (201-digits)

This number is a composite.

         1 0000000000 0000000000 0000000000 0000000000 0000000000 0000000000
0000000000 0000000000 0000000000 0000001216 0000000000 0000000000 0000000000
0000000000 0000000000 0000000000 0000000000 0000000000 0000000000 0000253383

+ The smallest semiprime with both prime factors greater than a googol. [Gallardo]

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