Q: What are the prime factors of the number 27,067,872?

 A: 2, 3, 13, 23, 41

Why are those the prime factors of the number 27,067,872?

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 27,067,872

27,067,872
Factor Arrows
213,533,936
Factor Arrows
26,766,968
Factor Arrows
23,383,484
Factor Arrows
21,691,742
Factor Arrows
2845,871
Factor Arrows
3281,957
Factor Arrows
1321,689
Factor Arrows
23943
Factor Arrows
2341

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, 13, 23, 41

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 3 x 13 x 23 x 23 x 41 = 27,067,872

This can also be written as 25 x 31 x 131 x 232 x 411 = 27,067,872

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


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