Q: What are the prime factors of the number 470,208?

 A: 2, 3, 31, 79

Why are those the prime factors of the number 470,208?

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 470,208

470,208
Factor Arrows
2235,104
Factor Arrows
2117,552
Factor Arrows
258,776
Factor Arrows
229,388
Factor Arrows
214,694
Factor Arrows
27,347
Factor Arrows
32,449
Factor Arrows
3179

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, 31, 79

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 3 x 31 x 79 = 470,208

This can also be written as 26 x 31 x 311 x 791 = 470,208

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


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