answersLogoWhite

0


Best Answer

Because fifteen is a compound number. That is it is a multiple of 5 & 3 .

User Avatar

lenpollock

Lvl 16
11mo ago
This answer is:
User Avatar
More answers
User Avatar

Wiki User

15y ago

Becouse 15 can be divided by 5 and by 3

This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: Why is fifteen not a prime number?
Write your answer...
Submit
Still have questions?
magnify glass
imp