5

This number is a prime.

Single Curio View: (Seek other curios for this number)

π(1) + π(2) + π(3) + π(4) + π(5) = phi(1 + 2 + 3 + 4 + 5). It is the only number with this property. [Firoozbakht]

Submitted: 2010-05-07 20:44:08; Last Modified: 2010-05-08 00:14:07.