Q: What are the prime factors of the number 26,811,072?

 A: 2, 3, 89, 523

Why are those the prime factors of the number 26,811,072?

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 26,811,072

26,811,072
Factor Arrows
213,405,536
Factor Arrows
26,702,768
Factor Arrows
23,351,384
Factor Arrows
21,675,692
Factor Arrows
2837,846
Factor Arrows
2418,923
Factor Arrows
3139,641
Factor Arrows
346,547
Factor Arrows
89523

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, 89, 523

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 3 x 3 x 89 x 523 = 26,811,072

This can also be written as 26 x 32 x 891 x 5231 = 26,811,072

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


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