M = 2^p-1 (2^p - 1)

(The first 2^p-1 has p-1 as an exponent)

What is p?

2ones makes no sense six flags with magic mountains that’s wrong

Skew lines(segments) are lines(segments) in 3 dimensions that do not intersect the given segment and are not parallel to it.  ae, bf, eg, and fh are your skew segments.  i hope that : )