They all represent stories past down through generations
Prime numbers are numbers that are only divisible by 1 and themselves. So, to tell if a number is prime, look at its factors.
19:
1 x 19
29:
1 x 29
39:
1 x 39
3 x 13
So, because 39 has more than one set of factors, it's NOT a prime number.
There was alot of competion ... the soviet union actually ended up dropping out of the cold war because america had out spent them...they were trying to see how much better each other was in technological advances
