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The common factors of 20, 28, and 36 are 1, 2 and 4

Q: What are the common factors of 20 28 and 36?

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The Greatest Common Factor (GCF) of 20, 28, and 36 is 4. The factors of 20 are 1, 2, 4, 5, and 10. Since ten is not a factor for either 28 or 36, we can remove it from consideration. Five, likewise, is not a factor for either 28 or 36, so it can be removed as well. This leaves four, which is the greatest common factor for all three numbers.

The common factors of 21 and 36 are 1 and 3

28 factors to [2 2 7] 36 factors to [2 2 3 3] Common factors are [2 2] Answer is 1, 2 and 4

4

It is: 4

The Greatest Common Factor (GCF) of 20 and 36 is: 4

The GCF is 4.

The only common factor is 1.

The common factors are: 1, 2, 4