Question

Express 21 as a product of prime
factors

Answer 1

21=1×21 or 3×7

Step-by-step explanation:

21 is a composite number.factors of 21:1,3,7,21.

Prime factorization:21=3×7.

since 3 and 7 are the only prime numbers ...

Thanks!!

Answer 2

Answer:
3*7

Step-by-step explanation:
Prime means that your factors cannot be divisible by any other number but 1, and itself.
3 and 7 are both prime numbers, and are the only prime numbers that multiply to 21.
Your prime factorization is 3*7.

Hope that helped!!