Q: What are the prime factors of the number 84,395,808?

 A: 2, 3, 7, 41863

Why are those the prime factors of the number 84,395,808?

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 84,395,808

84,395,808
Factor Arrows
242,197,904
Factor Arrows
221,098,952
Factor Arrows
210,549,476
Factor Arrows
25,274,738
Factor Arrows
22,637,369
Factor Arrows
3879,123
Factor Arrows
3293,041
Factor Arrows
741,863

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, 3, 7, 41863

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 3 x 3 x 7 x 41,863 = 84,395,808

This can also be written as 25 x 32 x 71 x 41,8631 = 84,395,808

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


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