A number theory problem by Lee Wall

Number Theory Level 3

Let \(S\) be the set of integers that leave a remainder of \(1\) when divided by \(2\), a remainder of \(2\) when divided by \(3\), and a remainder of \(3\) when divided by \(4\). How many integers in the interval \([0, 10^{4}]\) belong to \(S\)?

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.

Used and loved by 4 million people

Learn from a vibrant community of students and enthusiasts, including olympiad champions, researchers, and professionals.