71

This number is a prime.

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

The largest known natural number n such that 2ⁿ does not contain the prime digit 5. It is also the case for the prime digit 7. [Capelle]

Submitted: 2009-07-15 10:42:30; Last Modified: 2009-08-21 10:57:36.