Q: What are the prime factors of the number 723,044?

 A: 2, 7, 17, 31

Why are those the prime factors of the number 723,044?

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 723,044

723,044
Factor Arrows
2361,522
Factor Arrows
2180,761
Factor Arrows
725,823
Factor Arrows
73,689
Factor Arrows
7527
Factor Arrows
1731

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, 17, 31

We can check our work by multiplying all of the prime factors together: 2 x 2 x 7 x 7 x 7 x 17 x 31 = 723,044

This can also be written as 22 x 73 x 171 x 311 = 723,044

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


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