SOLUTION: i am a multiple of 5. two is not one of my factors. i am not prime and i am not square. i am less than 30. what number am i?

Algebra ->  Divisibility and Prime Numbers -> SOLUTION: i am a multiple of 5. two is not one of my factors. i am not prime and i am not square. i am less than 30. what number am i?       Log On


   

Question 565188: i am a multiple of 5. two is not one of my factors. i am not prime and i am not square. i am less than 30. what number am i?
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
Multiples of 5 less than 30: 0, 5, 10, 15, 20, 25

Since 2 is NOT a factor, we cross out 0, 10, and 20


So we're left with: 5, 15, 25

The number is NOT prime, so 5 is out. The number is NOT a square, so 25 is also out.


So the answer is 15.