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Earn +20 ptsQ: What are all of the factors for the number 21?
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How many factors does the number 21 have?
4 factors they are 1,3,7 and 21
What are all the common factors of 21?
The factors of 21: 1, 3, 7, 21.
What number s are?
The factors of 21 are 1, 3, 7, and 21. The only factor of 21 that is a composite number is 21.
Is 21 a prime or 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 23 21 19 prime or composite?
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.
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