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The factors of 143 are:

1, 11, 13, 143

The factors of 220 are:

1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220

The common factors are:

1, 11

Therefore, the Greatest Common Factor (GCF) is: 11

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12y ago
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Wiki User

10y ago

The GCF is 22.

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9y ago

It is: 110

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Q: What is the GCF of 143 and 220?
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