10-12-2020
Mathematics

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hcf of 20,80 and 128

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10-12-2020

The greatest common factor is 4.

Solution by Factorization:

The factors of 20 are: 1, 2, 4, 5, 10, 20

The factors of 80 are: 1, 2, 4, 5, 8, 10, 16, 20, 40, 80

The factors of 128 are: 1, 2, 4, 8, 16, 32, 64, 128

Then the greatest common factor is 4.

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