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Prime with Prime

Number Theory Level 2

How many 2 digit prime numbers are there such that the first digit is a prime and the second digit is also a prime?

3 6 9 4

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,
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including olympiad champions, researchers, and professionals.

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by Chung Kevin

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