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August/28 2024: Try our new
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Hightlight of the week
2024/10/14 New
official mock test from AOPS
2024/10/01 New problem set made by
high quality contests
created by wikjay, ijco, and megahertz13
2024/09/24 You can now do AMC mock tests with
high quality contests
created by AOPS community
2024/09/23 Video tutorial
parent guide
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2024/09/23 We added 500 new questions to
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, you can practice all questions from the famouse CEMC (Waterloo, Canada) Math Contest
2024/09/14 New
Math Trainer
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your own practice problems
2024/09/05 New
Berkeley Math tournament contests now available
2024/09/01 Start doing
online contest
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contest rating
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,
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Problem of the day
Let $p$ be the least prime number for which there exists a positive integer $n$ such that $n^{4}+1$ is divisible by $p^{2}$. Find the least positive integer $m$ such that $m^{4}+1$ is divisible by $p^{2}$.
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Latest update
2024/08/28 Checkout new
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for a successfully
Competify contest Test 2
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2024/08/13 Checkout
100 new questions in AMC 8 Number Theory
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Recent Answers
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question 22, AMC_8, 2008
and performing in top 14.78% students
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question 17, AMC_8, 2024
and performing in top 20.669% students
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question 20, AMC_8, 2008
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Most commonly incorrectly answered questions
Question 15, AMC_8, 2024
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Question 16, AMC_8, 2024
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Question 18, AMC_8, 2024
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Question 23, AMC_8, 2024
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Question 24, AMC_8, 2024
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Questions with the most corrections
Question 1, AMC_8, 2024
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Question 2, AMC_8, 2024
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Question 3, AMC_8, 2024
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Question 4, AMC_8, 2024
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Question 7, AMC_8, 2024
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Most difficult questions in AMC 8 - by solve rate (MAA)
Question 21, AMC_8, 2013
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Question 21, AMC_8_AI, 2013
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Question 21, AMC_8_AI, 2013
.
Question 18, AMC_8_AI, 2014
.
Question 18, AMC_8_AI, 2014
.
Most difficult questions in AMC 10 - by solve rate (MAA)
Question 1, AMC_10_AR_1, 2024
.
Question 1, AMC_10_AR_1, 2024
.
Question 8, AMC_10_AR_1, 2024
.
Question 24, AMC_10A, 2013
.
Question 25, AMC_10B, 2016
.
Most difficult questions in AMC 12 - by solve rate (MAA)
Question 21, AMC_12A, 2011
.
Question 22, AMC_12A, 2019
.
Question 24, AMC_12A, 2017
.
Question 23, AMC_12B, 2013
.
Question 20, AMC_12A, 2017
.