Q: What are the prime factors of the number 84,789,952?

 A: 2, 13, 223, 457

Why are those the prime factors of the number 84,789,952?

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 84,789,952

84,789,952
Factor Arrows
242,394,976
Factor Arrows
221,197,488
Factor Arrows
210,598,744
Factor Arrows
25,299,372
Factor Arrows
22,649,686
Factor Arrows
21,324,843
Factor Arrows
13101,911
Factor Arrows
223457

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, 13, 223, 457

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 13 x 223 x 457 = 84,789,952

This can also be written as 26 x 131 x 2231 x 4571 = 84,789,952

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


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