Q: What are the prime factors of the number 258,555,752?

 A: 2, 7, 13, 113, 449

Why are those the prime factors of the number 258,555,752?

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 258,555,752

258,555,752
Factor Arrows
2129,277,876
Factor Arrows
264,638,938
Factor Arrows
232,319,469
Factor Arrows
74,617,067
Factor Arrows
7659,581
Factor Arrows
1350,737
Factor Arrows
113449

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, 7, 13, 113, 449

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 7 x 7 x 13 x 113 x 449 = 258,555,752

This can also be written as 23 x 72 x 131 x 1131 x 4491 = 258,555,752

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


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