Property 1 If a number is divisible by another number then it is divisible by each of the factors of that number. If `abc` are three natural numbers such that a is divisible by `b and b` is divisible by `c` then a is divisible by c also.

If a number is divisible by 2 and 3, then it is also divisible by 6.

If a number is divisible both by 2 and 3, then it is divisible by 12.

A number is divisible by 6 if it is divisible by

Property 2 If a number is divisible by each of two or more co-prime numbers then it is divisible by their products.

Find the number of all three digit natural numbers which are divisible by 9.

Study the given statements carefully. State T for true and 'F' for false and select the correct option. (i) If a number is a factor of each of the given two numbers, then it must be factor of their a difference. (ii) If a number is divisible by another number, then it must be divisible by each of the factors of that number. (iii) If a number is divisible by another number, then it is also divisible by all the multiples of that number. (iv)No prime number other than 2 is even but every odd number is necessarily a prime number.

The number 101^(100) -1 is divisible by

Find how many three digit natural numbers are divisible by 5 .

find the sum of all three digit natural numbers which are divisible by 7

The number of numbers that are divisible by 9 between 1and 1000