Q: What are the prime factors of the number 727,170,324?

 A: 2, 3, 37, 443, 3697

Why are those the prime factors of the number 727,170,324?

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 727,170,324

727,170,324
Factor Arrows
2363,585,162
Factor Arrows
2181,792,581
Factor Arrows
360,597,527
Factor Arrows
371,637,771
Factor Arrows
4433,697

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, 37, 443, 3697

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 37 x 443 x 3,697 = 727,170,324

This can also be written as 22 x 31 x 371 x 4431 x 3,6971 = 727,170,324

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


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