Q: What are the prime factors of the number 307,904?

 A: 2, 17, 283

Why are those the prime factors of the number 307,904?

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 307,904

307,904
Factor Arrows
2153,952
Factor Arrows
276,976
Factor Arrows
238,488
Factor Arrows
219,244
Factor Arrows
29,622
Factor Arrows
24,811
Factor Arrows
17283

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, 17, 283

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 17 x 283 = 307,904

This can also be written as 26 x 171 x 2831 = 307,904

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


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