Q: What are the prime factors of the number 320,222,115?

 A: 3, 5, 17, 24623

Why are those the prime factors of the number 320,222,115?

Prime factors are the prime numbers that can be multipled together to equal the original number. You find the factors by dividing by prime numbers. It is best shown by creating a Factor Tree.

Factor Tree for the number 320,222,115

320,222,115
Factor Arrows
3106,740,705
Factor Arrows
335,580,235
Factor Arrows
57,116,047
Factor Arrows
17418,591
Factor Arrows
1724,623

The numbers in bold above are the prime factors. If there are multiples, you only count them one time. This leads us to our prime factors of:

3, 5, 17, 24623

We can check our work by multiplying all of the prime factors together: 3 x 3 x 5 x 17 x 17 x 24,623 = 320,222,115

This can also be written as 32 x 51 x 172 x 24,6231 = 320,222,115

If you would like to know more, or need additional explanation, please review our prime factorization explanation.


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