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Earn +20 ptsQ: Why is 21 a composite number?
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What is the composite number for 21?
The only composite factor of 21 is 21.
Why is 21 a prime number?
Who says it is? 21 is a composite number!
Is number 21 prime or composite?
number 21 is 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.
Is 21 a even number or a odd number?
21 is an odd composite number
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