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
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.
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.