359

This number is a prime.

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

359 = prime(phi(3*5*9)) = prime(phi(3*5*9 + 3+5+9)). It is the only known multidigit number with this property. [Firoozbakht]

Submitted: 2010-07-09 05:04:48; Last Modified: 2020-07-24 19:35:12.