4047

This number is a composite.

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

+ Consider Mersenne primes (in base 2), where every binary digit is a '1'. The number 4079 leads the first contiguous run of three such primes containing a single '0'. [Haysom]

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