Q: What are the prime factors of the number 12,031,104?

 A: 2, 3, 17, 19, 97

Why are those the prime factors of the number 12,031,104?

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 12,031,104

12,031,104
Factor Arrows
26,015,552
Factor Arrows
23,007,776
Factor Arrows
21,503,888
Factor Arrows
2751,944
Factor Arrows
2375,972
Factor Arrows
2187,986
Factor Arrows
293,993
Factor Arrows
331,331
Factor Arrows
171,843
Factor Arrows
1997

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, 17, 19, 97

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 17 x 19 x 97 = 12,031,104

This can also be written as 27 x 31 x 171 x 191 x 971 = 12,031,104

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


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