Q: What are the prime factors of the number 725,304?

 A: 2, 3, 47, 643

Why are those the prime factors of the number 725,304?

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 725,304

725,304
Factor Arrows
2362,652
Factor Arrows
2181,326
Factor Arrows
290,663
Factor Arrows
330,221
Factor Arrows
47643

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, 47, 643

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 47 x 643 = 725,304

This can also be written as 23 x 31 x 471 x 6431 = 725,304

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


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