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The number 4 has two factor pairs.

1 x 4 and 2 x 2

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12y ago

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How many pairs of factors does 4 have?

Factors for 4 are: 1, 2, 4 It has 2 pairs = 1 * 4 or 2 * 2


How many factor pairs do 20 have and what are they?

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What is the difference between factor pairs and distinct factor pairs?

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