Why? Because N is an odd number (you have an even number + 1) and any odd number leaves a remainder of 1 (this is x) when divided by 2 (your modulus).
I am very new at this modulo arithmetic, and donīt know who to interpret this problem.
Let N = 2*3*5*7*........*101 + 1
Find the smallest positive integer for which
if y = 2.
Please help me UNDERSTAND what to do here, not just a solution.