881

This number is a prime.

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

+ The smallest nontrivial (mutidigit) Sophie Germain prime p such that p-pi(p) is a perfect cube, i.e., (881-152 = 9^3). [Bajpai]

+ The smallest prime p such that the concatenation of pi(p) and p {152||881} is a perfect square (152881 = 391^2). [Bajpai]

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