Q: What are the prime factors of the number 859,488?

 A: 2, 3, 7, 1279

Why are those the prime factors of the number 859,488?

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 859,488

859,488
Factor Arrows
2429,744
Factor Arrows
2214,872
Factor Arrows
2107,436
Factor Arrows
253,718
Factor Arrows
226,859
Factor Arrows
38,953
Factor Arrows
71,279

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, 1279

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 7 x 1,279 = 859,488

This can also be written as 25 x 31 x 71 x 1,2791 = 859,488

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


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