How many three-digit numbers are divisible by 7?

How many numbers of two digit are divisible by 5?

Using all the digits 1,4,5,8,9 in how many ways can numbers be formed,so that the numbers would be divisible by 5?

Find the sum of all the two-digit natural number which are divisible by 4.

The sum of all 2-digit numbers divisible by 5 is a)945 b)1035 c)1230 d)1245

How many four digit numbers can be constructed by the digits 2,3,4,5,6,7 which are divisible by 5 assuming that no digit is repeated in any number?

Find the sum of all three digit natural number which is divisible by 13.

How many four digit number are there with no digit repeated?

Word Problem on Numbers The middle digit of a three digit number is 3 . The digit in the hundredth place is double the digit in the unit place . The number obtained by interchanging the extreme digits keeping middle digit same is less than the original number by 198 .Find the original number.

A number is selected from first 100 natural numbers. Find the probability that the number is divisible by 7.

You have seen that a number 450 is divisible by 10. It is also divisible by 2 and 5 which are factors of 10. Similarly, a number 135 is divisible by 9. It is also divisible by 3 which is a factor of 9. Can you say that if a number is divisible by any number m, then it will also be divisible by each of the factors of m?