Q: What are the prime factors of the number 107,904?

 A: 2, 3, 281

Why are those the prime factors of the number 107,904?

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 107,904

107,904
Factor Arrows
253,952
Factor Arrows
226,976
Factor Arrows
213,488
Factor Arrows
26,744
Factor Arrows
23,372
Factor Arrows
21,686
Factor Arrows
2843
Factor Arrows
3281

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, 281

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 2 x 3 x 281 = 107,904

This can also be written as 27 x 31 x 2811 = 107,904

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


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