answersLogoWhite

0


Best Answer

105 is not a Prime number. You can readily see that 3 and 5 go into it, and 7 goes into it too. The number ends in 5, and 5 goes into any number ending in 0 or 5. The sum of the digits is 6, and when the sum of the digits is divisible by 3, then so is the original number.

User Avatar

Wiki User

10y ago
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: Which number is not prime 101 103 105 107?
Write your answer...
Submit
Still have questions?
magnify glass
imp