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21 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.

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Q: What are the factors of 21 is it composite or prime?

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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.

The factors of 21 are 1, 3, 7, and 21 which means that 21 is composite.

21 is a composite number, not a prime, having prime factors 3x7.

19 is a prime number. Its only factors are 1 and 19. 21 is a composite number. Its factors are 1, 3, 7, and 21. 23 is a prime number. Its only factors are 1 and 23.

It is composite because it has more than 2 factors

21 is a composite number because it has more than two factors

21 has the factors 21,1,7,3. 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.

composite because it has more than two factors.

21 is composite, because 21 has more than 2 factors (1,3, and 7)

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. 21 is composite.

It is a composite number because it has more than two factors

21 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.

No, it is not possible. Every multiple of 21 is a composite number. 21 is a composite number and its factors are 1, 3, 7 and 21(4 factors). Any multiple of 21 must have all the factors of 21. So, every multiple of 21 has at least 4 factors. And a prime number has only two factors so, any multiple of 21 can't be prime.

21 is composite

21 is composite.

21 is composite.

No 21 is not a prime number because it has more than two factors therefore it is a composite number

63 is composite: its factors are 1, 3, 7, 9, 21 and 63.

It is composite because it has more than two factors

21 is a composite number because it has more than two factors

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. 21 is composite.

A prime number has exactly two factors, 1 and the number itself. The factors of 21 are 1, 3, 7, and 21, and the factors of 27 are 1, 3, 9, and 27. Since 21 and 27 have more than 2 factors, they are composite numbers.

composite- 7x3=21

Composite

There is not such a thing as a composite prime number. A prime number has exactly two factors. A composite number has more than two factors.

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