21 is composite number because it has more than one number that goes into it
The only composite factor of 21 is 21.
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.
21 is an odd composite number
The only composite factor of 21 is 21.
21 is a composite number
The next composite number after 20 is 21.
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.
21 is composite.
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.
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.