Is 25 a multiple of 2 or 5? How do you know?
Also any multiple of
Simply list out the multiples of
As we can see, the multiples of
And this makes sense right?
Whatever way you want to think about it works.
Any multiple of 2 is even. However 25 is odd so it can not be a multiple of 2.
From the last digit.
- If the last digit is 0 or 5 then the number is divisible by 5.
- if the last digit is 0,2,4,6,8 then the number is divisible by 2.
From 1 and 2 :
25 has last digit 5
=> 25 is divisible by 5
Multiples of 5 always end with a
My source is my mind.
I hope that helps you!