Q: What are the prime factors of the number 120,880,728?

 A: 2, 3, 559633

Why are those the prime factors of the number 120,880,728?

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 120,880,728

120,880,728
Factor Arrows
260,440,364
Factor Arrows
230,220,182
Factor Arrows
215,110,091
Factor Arrows
35,036,697
Factor Arrows
31,678,899
Factor Arrows
3559,633

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, 559633

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 3 x 3 x 559,633 = 120,880,728

This can also be written as 23 x 33 x 559,6331 = 120,880,728

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


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