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Leftovers

Weekly Problem 26 - 2008
If $n$ is a positive integer, how many different values for the remainder are obtained when $n^2$ is divided by $n+4$?

Harmonic Triangle

Stage: 4 Challenge Level: Challenge Level:3 Challenge Level:3 Challenge Level:3

Congratulations to Alice who sent in a correct solution to this problem:


solution

Congratulations to Ray who also worked on this problem and sent us the following result:

Ray's solution