answersLogoWhite

0


Best Answer

Because 7 is a factor of 28 and 63 and 7 is a Prime number.

User Avatar

Wiki User

8y ago
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: Why is 7 the prime factor of 28 and 63?
Write your answer...
Submit
Still have questions?
magnify glass
imp