Let q be a prime, k= q-2 and X be an Integer,
I have found solutions for q=5,7,17 for the equation
(2^k) - 7 = X^2 .
I have checked q for up to 1000000 but was not able to find any other
solutions.
Please prove if there can be more solutions or none for this equation.
Thanks in...
Dear All,
I have to test if a binary number is divisible to
2^n - 1 where n is even.
Is there a test available for binary numbers like to test a divisibility by 3.
Thanks in advance...