answersLogoWhite

0


Best Answer

21=3*7

15=3*5

Not to judge, but...this shouldn't be too difficult...

User Avatar

Wiki User

13y ago
This answer is:
User Avatar
More answers
User Avatar

Wiki User

12y ago

3 x 5 = 15

3 x 7 = 21

This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: What is the prime factorization of 15 and 21?
Write your answer...
Submit
Still have questions?
magnify glass
imp