Q: What are the prime factors of the number 27,027,072?

 A: 2, 3, 29, 809

Why are those the prime factors of the number 27,027,072?

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 27,027,072

27,027,072
Factor Arrows
213,513,536
Factor Arrows
26,756,768
Factor Arrows
23,378,384
Factor Arrows
21,689,192
Factor Arrows
2844,596
Factor Arrows
2422,298
Factor Arrows
2211,149
Factor Arrows
370,383
Factor Arrows
323,461
Factor Arrows
29809

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, 29, 809

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 3 x 29 x 809 = 27,027,072

This can also be written as 27 x 32 x 291 x 8091 = 27,027,072

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


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