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The greatest common factor of the numbers 55, 77 and 143 is 11.
Common factors of 55: 1, 5, 11, and 55.

Common factors of 77: 1, 7, 11, and 77.

Common factors of 143: 1, 11, 13, and 143.

So the greatest common factor is 11.

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9y ago

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