Q: What are the prime factors of the number 120,551,472?

 A: 2, 3, 79, 10597

Why are those the prime factors of the number 120,551,472?

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 120,551,472

120,551,472
Factor Arrows
260,275,736
Factor Arrows
230,137,868
Factor Arrows
215,068,934
Factor Arrows
27,534,467
Factor Arrows
32,511,489
Factor Arrows
3837,163
Factor Arrows
7910,597

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:

2, 3, 79, 10597

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 3 x 79 x 10,597 = 120,551,472

This can also be written as 24 x 32 x 791 x 10,5971 = 120,551,472

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


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