Q: What are the prime factors of the number 730,103,625?

 A: 3, 5, 72109

Why are those the prime factors of the number 730,103,625?

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 730,103,625

730,103,625
Factor Arrows
3243,367,875
Factor Arrows
381,122,625
Factor Arrows
327,040,875
Factor Arrows
39,013,625
Factor Arrows
51,802,725
Factor Arrows
5360,545
Factor Arrows
572,109

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, 72109

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 3 x 5 x 5 x 5 x 72,109 = 730,103,625

This can also be written as 34 x 53 x 72,1091 = 730,103,625

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


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