This number is a prime.

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

+ The smaller of only two primes less than a googol formed by concatenating in reverse order the first n primes ending with 9, (n=3). The larger one is for n=7. [Loungrides]

Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell