Q: What are the prime factors of the number 84,160?

 A: 2, 5, 263

Why are those the prime factors of the number 84,160?

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 84,160

84,160
Factor Arrows
242,080
Factor Arrows
221,040
Factor Arrows
210,520
Factor Arrows
25,260
Factor Arrows
22,630
Factor Arrows
21,315
Factor Arrows
5263

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, 263

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 5 x 263 = 84,160

This can also be written as 26 x 51 x 2631 = 84,160

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


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