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A number theory problem by Luke Tan

Number Theory Level 3

Is the number 1000C500 (1000 choose 500) divisible by 7?

Yes There's no way to tell I dunno No

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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, interactive explorations.

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including olympiad champions, researchers, and professionals.

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by Luke Tan

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