Q: What are the prime factors of the number 27,358,368?

 A: 2, 3, 29, 31, 317

Why are those the prime factors of the number 27,358,368?

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 27,358,368

27,358,368
Factor Arrows
213,679,184
Factor Arrows
26,839,592
Factor Arrows
23,419,796
Factor Arrows
21,709,898
Factor Arrows
2854,949
Factor Arrows
3284,983
Factor Arrows
299,827
Factor Arrows
31317

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, 31, 317

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 29 x 31 x 317 = 27,358,368

This can also be written as 25 x 31 x 291 x 311 x 3171 = 27,358,368

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


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