Q: What are the prime factors of the number 725,088?

 A: 2, 3, 7, 13, 83

Why are those the prime factors of the number 725,088?

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 725,088

725,088
Factor Arrows
2362,544
Factor Arrows
2181,272
Factor Arrows
290,636
Factor Arrows
245,318
Factor Arrows
222,659
Factor Arrows
37,553
Factor Arrows
71,079
Factor Arrows
1383

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, 7, 13, 83

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 3 x 7 x 13 x 83 = 725,088

This can also be written as 25 x 31 x 71 x 131 x 831 = 725,088

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


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