Q: What are the prime factors of the number 478,710?

 A: 2, 3, 5, 197

Why are those the prime factors of the number 478,710?

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 478,710

478,710
Factor Arrows
2239,355
Factor Arrows
379,785
Factor Arrows
326,595
Factor Arrows
38,865
Factor Arrows
32,955
Factor Arrows
3985
Factor Arrows
5197

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, 5, 197

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 3 x 3 x 3 x 5 x 197 = 478,710

This can also be written as 21 x 35 x 51 x 1971 = 478,710

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


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