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Polynomial Multiple of Five

Number Theory Level 1

True or false:

For any integer \(y\), the number \(y^2+y+1\) can never be divisible by 5.

False True There is insufficient information

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 Ossama Ismail

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