A prime number is a number that is only divisible by one and itself, which is essentially saying that it has no divisor. That takes half of all possible numbers off the table right away (the evens), ...
Prime numbers are those that can be divided cleanly only by themselves and by 1. The first primes are 2, 3, 5, 7, 11, 13, 17, 19, and 23. Prime numbers are where imaginary mathematics begins. They are ...