1.) 19 and 29 are prime numbers because they only have 1 and themselves as their factors. What I mean is that nothing else can multiply to get 19 or 29 except 19 times 1 or 29 times 1. Also, 19 times 19 or 29 times 29. An example of a non-prime number is 24 because the numbers 1, 2, 3, 4, 6, 8, 12, and 24 can multiply to get 24. For example, 1 times 24 = 24, 2 times 12 = 24, 3 times 8 = 24, and so on.
