Q: What are the prime factors of the number 475,308?

 A: 2, 3, 163

Why are those the prime factors of the number 475,308?

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 475,308

475,308
Factor Arrows
2237,654
Factor Arrows
2118,827
Factor Arrows
339,609
Factor Arrows
313,203
Factor Arrows
34,401
Factor Arrows
31,467
Factor Arrows
3489
Factor Arrows
3163

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, 163

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 3 x 3 x 3 x 3 x 163 = 475,308

This can also be written as 22 x 36 x 1631 = 475,308

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


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