Q: What are the prime factors of the number 17,901,184?

 A: 2, 7, 19979

Why are those the prime factors of the number 17,901,184?

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 17,901,184

17,901,184
Factor Arrows
28,950,592
Factor Arrows
24,475,296
Factor Arrows
22,237,648
Factor Arrows
21,118,824
Factor Arrows
2559,412
Factor Arrows
2279,706
Factor Arrows
2139,853
Factor Arrows
719,979

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, 7, 19979

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 7 x 19,979 = 17,901,184

This can also be written as 27 x 71 x 19,9791 = 17,901,184

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


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