> If you find a new prime smaller than M39, you have found
> something *really*
> rare - an out-of-order Mersenne prime. Only one of those as
> ever been found
> when Welsh and Colquitt found M110503. Some argue that M4253 was
> found out-of-order, but the computer discovered it in-order....
M61, M89, and M107 were also out-of-order.
Best wishes
Jan
