3631
This number is a prime.
3631 is the second smallest prime number whose smallest positive primitive root is 15. The smallest such prime is 439. [Noe]
3631 is the smallest prime that is the concatenation of a square s and a prime p such that the concatenation of p and s is a square. [Vantieghem]
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell