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Whats The NUMBER???

Discrete Mathematics Level 4

How many integers between 1 and 1,000,000 have the sum of their digits equal to 18?

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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 Harshvardhan Mehta

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