Yes, 20 is a composite number because it has at least one positive factor other than one or itself.
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20 is a composite number because it has more than 2 factors
The only composite factor of 10 is 10. The composite factors of 20 are 4, 10, 20
composite
20 is a composite number. A prime number has only 2 factors which are 1 and itself. Composite numbers are everything else except 1 and 0. 1 and 0 are neither prime, nor composite.
Any number that has factors smaller than itself (other than 1) is a composite number.Any number that has factors smaller than itself (other than 1) is a composite number.Any number that has factors smaller than itself (other than 1) is a composite number.Any number that has factors smaller than itself (other than 1) is a composite number.