Q: What are the prime factors of the number 438,428?

 A: 2, 43, 2549

Why are those the prime factors of the number 438,428?

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 438,428

438,428
Factor Arrows
2219,214
Factor Arrows
2109,607
Factor Arrows
432,549

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, 43, 2549

We can check our work by multiplying all of the prime factors together: 2 x 2 x 43 x 2,549 = 438,428

This can also be written as 22 x 431 x 2,5491 = 438,428

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


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