<sudarshanmysore@...> wrote:>

Will Edgington says many consider it to be an open question rather

> Is this a conjecture? or is it a false statement? or is it a well

> known theorem?

>

> if p is prime then (2^p)-1 is square free.

than a conjecture, but there are no counterexamples below 4e12. He

has information about what is known on his page.

http://www.garlic.com/~wedgingt/mersenne.html

William

Poohbah of OddPerfect.org