Q: What are the prime factors of the number 120,675,264?

 A: 2, 3, 29, 21673

Why are those the prime factors of the number 120,675,264?

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 120,675,264

120,675,264
Factor Arrows
260,337,632
Factor Arrows
230,168,816
Factor Arrows
215,084,408
Factor Arrows
27,542,204
Factor Arrows
23,771,102
Factor Arrows
21,885,551
Factor Arrows
3628,517
Factor Arrows
2921,673

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, 29, 21673

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 3 x 29 x 21,673 = 120,675,264

This can also be written as 26 x 31 x 291 x 21,6731 = 120,675,264

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


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