A number is divisible by 4 if the last two digits form a number that is divisible by 4.
If the last two digits can be divided by 4 without a remainder, then the whole number is divisible by 4!
Look at the last two digits of the number.
Check if that number is divisible by 4.
If it is, then the whole number is divisible by 4.
Last two digits: 16
Check divisibility: 16 ÷ 4 = 4 (No remainder)
7216 is divisible by 4.
Last two digits: 45
Check divisibility: 45 ÷ 4 = 11.25 (Not a whole number)
3245 is not divisible by 4.
Know the divisibility rule of 6 here.
Are they divisible by 4?
1. 5648
2. 9212
3. 4321