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The factors of 32 are 1, 2, 4, 8, 16 and 32.

The factors of 40 are 1, 2, 4, 5, 8, 10, 20 and 40.

The common factors are 1, 2, 4 and 8.

The Higest Common Factor (HCF) is 8.

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14y ago

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