Q: What are the prime factors of the number 138,052,755?

 A: 3, 5, 71, 4801

Why are those the prime factors of the number 138,052,755?

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 138,052,755

138,052,755
Factor Arrows
346,017,585
Factor Arrows
315,339,195
Factor Arrows
35,113,065
Factor Arrows
31,704,355
Factor Arrows
5340,871
Factor Arrows
714,801

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:

3, 5, 71, 4801

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 3 x 5 x 71 x 4,801 = 138,052,755

This can also be written as 34 x 51 x 711 x 4,8011 = 138,052,755

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


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