Check whether 25110 is divisible by 45.

Given, a number 25110

Need to find out the number is divisible by 45

⇒ The prime factorization of 45 = 5 × 9

So, it is sufficient to find the number divisible with 5 and 9

⇒ 25110 is divisible by 5 as ‘0’ is at its units place

⇒ the sum of the digits of a number = 2 + 5 + 1 + 1 + 0 = 9 which is divisible by 9

Hence, the given number 25110 is divisible by 45.