On Mersenne's Numbers: Mr. R. E. Powers.|
The purpose of Mr. Power's paper is to show
that the Mersenne number
If N =
each term of which is equal to the square of the preceding, diminished by two units: the number N is prime if the residue 0 occurs between the (2q+1)-th and the (4q+2)-th term; N is composite if none of the first (4q+2) residue is 0.
The 106th term of the above series is congruent
to 0 (modulo