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Q: Which composite number from six to twenty is closest in value to the sum of its prime factors?

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4,6,8,12,24

Twenty is composite. It has the factors 1, 2, 4 ,5, 10, and 20. Prime numbers have exactly two factors. Composite numbers have three or more.

24 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.

27 is not a prime number because it has more than two factors and so therefore it is a composite number

no the only even number that is composite is two

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.

Yes.

Yes.

21 is not a prime number.

No 23 is a prime #

It is composite.

no number

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