Number Theory

Question 1

What is a composite number?

What is 1?

Answer 1

Has more than 2 factors

1 is neither prime or composite

Question 2

What is an excellent way to find a number’s prime factors?

Answer 2

Factor tree / upside-down division

          504
          /   \
         2  252
             /   \
            2  126
                /    \
               2    63
                    /   \
                   7    9
                         /\
                        3 3

2 x 2 x 2 x 7 x 3 x 3 = 504