Q: What are the prime factors of the number 858,684?

 A: 2, 3, 163, 439

Why are those the prime factors of the number 858,684?

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 858,684

858,684
Factor Arrows
2429,342
Factor Arrows
2214,671
Factor Arrows
371,557
Factor Arrows
163439

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, 163, 439

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 163 x 439 = 858,684

This can also be written as 22 x 31 x 1631 x 4391 = 858,684

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


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