Q: What are the prime factors of the number 853,384?

 A: 2, 7, 311

Why are those the prime factors of the number 853,384?

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 853,384

853,384
Factor Arrows
2426,692
Factor Arrows
2213,346
Factor Arrows
2106,673
Factor Arrows
715,239
Factor Arrows
72,177
Factor Arrows
7311

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, 7, 311

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 7 x 7 x 7 x 311 = 853,384

This can also be written as 23 x 73 x 3111 = 853,384

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


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