Q: What are the prime factors of the number 726,323,676?

 A: 2, 3, 13, 29, 31, 5179

Why are those the prime factors of the number 726,323,676?

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 726,323,676

726,323,676
Factor Arrows
2363,161,838
Factor Arrows
2181,580,919
Factor Arrows
360,526,973
Factor Arrows
134,655,921
Factor Arrows
29160,549
Factor Arrows
315,179

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, 13, 29, 31, 5179

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 13 x 29 x 31 x 5,179 = 726,323,676

This can also be written as 22 x 31 x 131 x 291 x 311 x 5,1791 = 726,323,676

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


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