Divide by 55

If nn is a positive integer, then nn has 55 possible remainders after division by five: 0,1,2,30, 1, 2, 3 and 44.

If nn is a positive integer, then n2n^2 is also a positive integer.

nn is a positive integer. What is the number of possible remainders of n2n^2 after division by five?

×

Problem Loading...

Note Loading...

Set Loading...