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Earn +20 ptsQ: Which number is not a prime or a composite number 21 15 8 and 1?
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Is 21 a prime number of composite?
21 is a composite number
Is these prime or composite or neither 15 21 31 26 61?
31 and 61 are prime, the rest composite.
Is number 21 prime or composite?
number 21 is prime
Is 21 a composite number or prime number?
Composite
Is 21 prime or a composite number?
Composite.
Is 21 a prime number or a 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 prime or composite number?
Composite, 21=3*7
Is the prime number 21 is a prime number?
21 is a composite number, not a prime, having prime factors 3x7.
Why is 21 a prime number?
Who says it is? 21 is a composite number!
21 a prime or a compostie?
21 is a composite number.
Is 21 prime or compostie?
21 is a composite number.
A prime from 27 15 21 23?
27 is composite. 27 = 3 * 3 * 3 = 3315 is composite. 15 = 3 * 521 is composite. 21 = 3 * 723 is a prime number. It is only evenly divisible by itself and one.
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