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Square number

Number Theory Level 2

Determine the four digit perfect square whose first two digits are the same, and whose last two digits are the same.

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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.

Used and loved by over 6 million people

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

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by Rubayat Jalal

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