Q: What are the prime factors of the number 120,015,232?

 A: 2, 191, 4909

Why are those the prime factors of the number 120,015,232?

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 120,015,232

120,015,232
Factor Arrows
260,007,616
Factor Arrows
230,003,808
Factor Arrows
215,001,904
Factor Arrows
27,500,952
Factor Arrows
23,750,476
Factor Arrows
21,875,238
Factor Arrows
2937,619
Factor Arrows
1914,909

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, 191, 4909

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 2 x 191 x 4,909 = 120,015,232

This can also be written as 27 x 1911 x 4,9091 = 120,015,232

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


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