Question

The difference between the number of numbers from 2 to 100 which are not divisible by any other number except 1and itself and the numbers which are divisible by at least one more number along with one and itself

Answer 1

There are 99 numbers from 2 to 100.

23 of them are prime ( divisible only by 1 or itself)

Rest 76 numbers are not prime i.e., they are divisible by at least one more number along with one and itself