Q: What are the prime factors of the number 625,470,649?

 A: 53, 1279, 9227

Why are those the prime factors of the number 625,470,649?

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 625,470,649

625,470,649
Factor Arrows
5311,801,333
Factor Arrows
1,2799,227

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:

53, 1279, 9227

We can check our work by multiplying all of the prime factors together: 53 x 1,279 x 9,227 = 625,470,649

This can also be written as 531 x 1,2791 x 9,2271 = 625,470,649

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


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