Q: What are the prime factors of the number 855,468?

 A: 2, 3, 89

Why are those the prime factors of the number 855,468?

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 855,468

855,468
Factor Arrows
2427,734
Factor Arrows
2213,867
Factor Arrows
371,289
Factor Arrows
323,763
Factor Arrows
37,921
Factor Arrows
8989

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, 89

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 3 x 89 x 89 = 855,468

This can also be written as 22 x 33 x 892 = 855,468

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


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