Q: What are the prime factors of the number 587,840?

 A: 2, 5, 11, 167

Why are those the prime factors of the number 587,840?

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 587,840

587,840
Factor Arrows
2293,920
Factor Arrows
2146,960
Factor Arrows
273,480
Factor Arrows
236,740
Factor Arrows
218,370
Factor Arrows
29,185
Factor Arrows
51,837
Factor Arrows
11167

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, 11, 167

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 11 x 167 = 587,840

This can also be written as 26 x 51 x 111 x 1671 = 587,840

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


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