Q: What are the prime factors of the number 84,354,875?

 A: 5, 11, 31, 1979

Why are those the prime factors of the number 84,354,875?

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 84,354,875

84,354,875
Factor Arrows
516,870,975
Factor Arrows
53,374,195
Factor Arrows
5674,839
Factor Arrows
1161,349
Factor Arrows
311,979

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:

5, 11, 31, 1979

We can check our work by multiplying all of the prime factors together: 5 x 5 x 5 x 11 x 31 x 1,979 = 84,354,875

This can also be written as 53 x 111 x 311 x 1,9791 = 84,354,875

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


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