Q: What are the prime factors of the number 86,469,632?

 A: 2, 84443

Why are those the prime factors of the number 86,469,632?

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 86,469,632

86,469,632
Factor Arrows
243,234,816
Factor Arrows
221,617,408
Factor Arrows
210,808,704
Factor Arrows
25,404,352
Factor Arrows
22,702,176
Factor Arrows
21,351,088
Factor Arrows
2675,544
Factor Arrows
2337,772
Factor Arrows
2168,886
Factor Arrows
284,443

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, 84443

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 2 x 2 x 2 x 84,443 = 86,469,632

This can also be written as 210 x 84,4431 = 86,469,632

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


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