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What is the HCF of 24 and 36?

1. 4
2. 6
3. 12
4. 18

Correct answer: 12

Solution

The factors of 24 are 1, 2, 3, 4, 6, 8, 12, 24 and the factors of 36 are 1, 2, 3, 4, 6, 9, 12, 18, 36. The greatest common factor is 12.

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