Perfect square — AMC & AIME Problems

Practice every real AMC 8, AMC 10, AMC 12, and AIME problem that uses Perfect square — a number theory concept — each with a professionally curated solution, many with a video solution too, from LIVE by Po-Shen Loh. Browse all concepts or the full past-contest archive.

All problems are used with official legal permission of the Mathematical Association of America (MAA).

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AMC 8

1986 AMC 8 Problem 7 1988 AMC 8 Problem 11 1990 AMC 8 Problem 4 1993 AMC 8 Problem 24 2002 AMC 8 Problem 11 2006 AMC 8 Problem 11 2008 AMC 8 Problem 24 2009 AMC 8 Problem 17 2009 AMC 8 Problem 18 2016 AMC 8 Problem 7 2017 AMC 8 Problem 11 2022 AMC 8 Problem 12 2024 AMC 8 Problem 4

More number theory concepts

Chicken McNugget TheoremChinese Remainder Theoremcontinued fractiondigitsDiophantine EquationdivisibilityEuler’s Totient Functionfactorfactor countingFermat’s Little Theoremgreatest common divisorleast common multipleLegendre’s Formulamodular arithmeticmodular exponentiationmultiplemultiplicative orderpalindromeparityperfect powerpower of 2primeprime factorizationquadratic residuesum of factorstrailing zerostriangular numberunits digit