Q: What are the prime factors of the number 120,756,875?

 A: 5, 19, 10169

Why are those the prime factors of the number 120,756,875?

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 120,756,875

120,756,875
Factor Arrows
524,151,375
Factor Arrows
54,830,275
Factor Arrows
5966,055
Factor Arrows
5193,211
Factor Arrows
1910,169

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:

5, 19, 10169

We can check our work by multiplying all of the prime factors together: 5 x 5 x 5 x 5 x 19 x 10,169 = 120,756,875

This can also be written as 54 x 191 x 10,1691 = 120,756,875

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


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