Q: What are the prime factors of the number 674,472?

 A: 2, 3, 157, 179

Why are those the prime factors of the number 674,472?

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 674,472

674,472
Factor Arrows
2337,236
Factor Arrows
2168,618
Factor Arrows
284,309
Factor Arrows
328,103
Factor Arrows
157179

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, 157, 179

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 157 x 179 = 674,472

This can also be written as 23 x 31 x 1571 x 1791 = 674,472

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


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