Prime numbers are numbers that are divisible by
exactly 2 positive integers- these will end up being
themselves and one.
The prime numbers from 1-100 are:
2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97.
1 is not a prime number because 1 is divisible by one positive integer, 1.
0 is not a prime number because it is divisible by an infinite number of positive integers.
Also 1 and 0 are neither prime nor composite.