Question

If a prime number P is a factor of (100! ‒ 1), the value of P must be __________\

Answer 1

Answer: how to find out prime numbers from 1-100

Explanation: if you want to find out all the prime numbers from one-one hundred then write numbers 1-100.

then cross all even numbers except 2

then cross all multiples of 3, 5 ,7 and 9 but don't cross out 3 ,5 ,7 and 9.