Q: What is 21 a prime or composite?

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21 is composite.

21 is composite.

composite- 7x3=21

Composite

21 is a composite number

Composite

Composite.

number 21 is prime

Composite, 21=3*7

Composite

21 is composite. 19 and 23 are prime.

19 and 23 are prime numbers whereas 21 is a composite number

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What is 21 a prime or composite?

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