Maths Olympiad Prep

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Problem 665

AMC 10/12, early questions
Number theory Difficulty 3.0 Find the answer UKMT Junior Mathematical Challenge · United Kingdom · 2025

When 180180 is divided by a positive integer NN, the remainder is 55. For how many values of NN is this true? (A) 44 (B) 55 (C) 66 (D) 77 (E) 88

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