Q: What are the prime factors of the number 438,432?

 A: 2, 3, 4567

Why are those the prime factors of the number 438,432?

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 438,432

438,432
Factor Arrows
2219,216
Factor Arrows
2109,608
Factor Arrows
254,804
Factor Arrows
227,402
Factor Arrows
213,701
Factor Arrows
34,567

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, 4567

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 4,567 = 438,432

This can also be written as 25 x 31 x 4,5671 = 438,432

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


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