The Number
Given a positive integer less than 2000.
If it is not divisible by 43, then it is divisible by 41,
If it is not divisible by 53, then it is divisible by 43,
If it is not divisible by 41, then it is divisible by 53.
Find the number.
Difficulty level (1 very easy - 10 very hard): 1
Topics:
Number Theory
->
Prime Numbers
Arithmetic
Number Theory
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Modular Arithmetic / Remainder Arithmetic
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Divisibility Rules
Logic
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Reasoning / Logic
Number Theory
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Greatest Common Divisor (GCD) and Least Common Multiple (LCM)
Combinatorics
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Case Analysis / Checking Cases
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Processes / Procedures
Number Theory
->
Division
- Young Mathematician Olympiad, 2019-2020, Stage B, Grades 3-4 Question 6
- Young Mathematician Olympiad, 2019-2020, Stage B, Grades 5-6 Question 4
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