Question

Verify whether 1800 is divisible by 4 and by 8 ?

Answer 1

it is divisible by both 4 and 8

Answer 2

According to the rule of divisibility if last two digits of any number is divisible by 4 then whole number is divisible by 4

And if last 3 digits of any number is divisible by 8 then the whole number is divisible by 8

And we can see that 1800 last two digits can be divided by 4 and hence the whole number can be divided by 4 = 1800/4 = 450

Now, last 3 digits of 1800 is divisible by 8 hence the whole number can be divisible by 8, 1800/8 = 225