Q: What are the prime factors of the number 104,543,872?

 A: 2, 241, 3389

Why are those the prime factors of the number 104,543,872?

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 104,543,872

104,543,872
Factor Arrows
252,271,936
Factor Arrows
226,135,968
Factor Arrows
213,067,984
Factor Arrows
26,533,992
Factor Arrows
23,266,996
Factor Arrows
21,633,498
Factor Arrows
2816,749
Factor Arrows
2413,389

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, 241, 3389

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 241 x 3,389 = 104,543,872

This can also be written as 27 x 2411 x 3,3891 = 104,543,872

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


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