Q: What are the prime factors of the number 89,116,040?

 A: 2, 5, 13, 17, 593

Why are those the prime factors of the number 89,116,040?

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 89,116,040

89,116,040
Factor Arrows
244,558,020
Factor Arrows
222,279,010
Factor Arrows
211,139,505
Factor Arrows
52,227,901
Factor Arrows
13171,377
Factor Arrows
1710,081
Factor Arrows
17593

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, 5, 13, 17, 593

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 5 x 13 x 17 x 17 x 593 = 89,116,040

This can also be written as 23 x 51 x 131 x 172 x 5931 = 89,116,040

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


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