The only composite factor of 21 is 21.
21 is composite number because it has more than one number that goes into it
Who says it is? 21 is a composite number!
number 21 is prime
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 only composite factor of 21 is 21.
21 is a composite number
A composite number is a number that has more than two factors. The factors of 21 are 1, 3, 7, and 21. Therefore, 21 is a composite number.
The next composite number after 20 is 21.
Yes.30 is a composite number because it has more than two factors
21 is composite.
21 is composite number because it has more than one number that goes into it
20 21 22 24 25 26 27 28 30
21 and 28 are composite.
The first composite number greater than 21 is 22.
21 is the composite number because it's an odd number. 2 cannot be a composite number because it's even.
A composite number is a number that has more than two factors. The factors of 21 are 1, 3, 7, and 21. Therefore, 21 is a composite number.