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Lucky remainder

Number Theory Level 3

How many positive integers \(a\) are there such that 2027 divided by \(a\) leaves a remainder of 7?

Excel in math and science

Master concepts by solving fun, challenging problems.

It's hard to learn from lectures and videos

Learn more effectively through short, conceptual quizzes.

Our wiki is made for math and science

Master advanced concepts through explanations,
examples, and problems from the community.

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including olympiad champions, researchers, and professionals.

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by Calvin Lin

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