Question

List prime factors of 21 and 15​

Answer 1

The prime factors of 15 are 3 and 5; 15 = 3 × 5. The prime factors of 21 are 3 and 7; 21 = 3 × 7.

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Answer 2

Step-by-step explanation:

Prime factors of 21

1,3,7

Prime factors of 15

1,3,5