Q: What are the prime factors of the number 120,113,455?

 A: 5, 7, 11, 6367

Why are those the prime factors of the number 120,113,455?

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 120,113,455

120,113,455
Factor Arrows
524,022,691
Factor Arrows
73,431,813
Factor Arrows
7490,259
Factor Arrows
770,037
Factor Arrows
116,367

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, 7, 11, 6367

We can check our work by multiplying all of the prime factors together: 5 x 7 x 7 x 7 x 11 x 6,367 = 120,113,455

This can also be written as 51 x 73 x 111 x 6,3671 = 120,113,455

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


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