Q: What are the prime factors of the number 12,526,320?

 A: 2, 3, 5, 19, 41, 67

Why are those the prime factors of the number 12,526,320?

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 12,526,320

12,526,320
Factor Arrows
26,263,160
Factor Arrows
23,131,580
Factor Arrows
21,565,790
Factor Arrows
2782,895
Factor Arrows
3260,965
Factor Arrows
552,193
Factor Arrows
192,747
Factor Arrows
4167

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, 5, 19, 41, 67

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 5 x 19 x 41 x 67 = 12,526,320

This can also be written as 24 x 31 x 51 x 191 x 411 x 671 = 12,526,320

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


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