Q: What are the prime factors of the number 57,472?

 A: 2, 449

Why are those the prime factors of the number 57,472?

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 57,472

57,472
Factor Arrows
228,736
Factor Arrows
214,368
Factor Arrows
27,184
Factor Arrows
23,592
Factor Arrows
21,796
Factor Arrows
2898
Factor Arrows
2449

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, 449

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 2 x 449 = 57,472

This can also be written as 27 x 4491 = 57,472

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


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