Q: What are the prime factors of the number 723,267,550?

 A: 2, 5, 17, 491, 1733

Why are those the prime factors of the number 723,267,550?

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 723,267,550

723,267,550
Factor Arrows
2361,633,775
Factor Arrows
572,326,755
Factor Arrows
514,465,351
Factor Arrows
17850,903
Factor Arrows
4911,733

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, 5, 17, 491, 1733

We can check our work by multiplying all of the prime factors together: 2 x 5 x 5 x 17 x 491 x 1,733 = 723,267,550

This can also be written as 21 x 52 x 171 x 4911 x 1,7331 = 723,267,550

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


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