Q: What are the prime factors of the number 120,201,344?

 A: 2, 79, 11887

Why are those the prime factors of the number 120,201,344?

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 120,201,344

120,201,344
Factor Arrows
260,100,672
Factor Arrows
230,050,336
Factor Arrows
215,025,168
Factor Arrows
27,512,584
Factor Arrows
23,756,292
Factor Arrows
21,878,146
Factor Arrows
2939,073
Factor Arrows
7911,887

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, 79, 11887

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 79 x 11,887 = 120,201,344

This can also be written as 27 x 791 x 11,8871 = 120,201,344

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


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