Factor — AMC & AIME Problems
Practice every real AMC 8, AMC 10, AMC 12, and AIME problem that uses factor — 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 of these problems are used with official legal permission of the Mathematical Association of America (MAA).
AMC 8
1988 AMC 8 Problem 14 · 1990 AMC 8 Problem 22 · 1994 AMC 8 Problem 10 · 1995 AMC 8 Problem 12 · 1995 AMC 8 Problem 22 · 1996 AMC 8 Problem 1 · 2001 AMC 8 Problem 2 · 2006 AMC 8 Problem 10 · 2017 AMC 8 Problem 23 · 2022 AMC 8 Problem 3
AMC 10
2003 AMC 10A Problem 8 · 2005 AMC 10A Problem 21 · 2014 AMC 10A Problem 21 · 2014 AMC 10B Problem 12 · 2018 AMC 10B Problem 21 · 2021 AMC 10B Spring Problem 5 · 2022 AMC 10B Problem 7 · 2023 AMC 10A Problem 23 · 2024 AMC 10A Problem 7 · 2024 AMC 10B Problem 6