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Earn +20 ptsQ: Is 21 a prime or composite?
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What is 21 a prime or composite?
21 is composite
Is 21 a prime composite or neither?
Composite
Is number 21 prime or composite?
number 21 is prime
Is 19 21 or 23 composite?
21 is composite. 19 and 23 are prime.
Is 21 a prime or composite number?
21 is a Composite Number. A prime number is a whole number that only has two factors which are itself and one. A composite number has factors in addition to one and itself. 21 is divisible by 3 and 7.
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