0
Anonymous
21 is composite. It's the product of 7 and 3 .
Wiki User
Chat with our AI personalities
21 is composite, because 21 has more than 2 factors (1,3, and 7)
composite- 7x3=21
21 is composite.
21 is composite
Composite
number 21 is prime
21 is composite. 19 and 23 are prime.