Q: What are the prime factors of the number 820,065?

 A: 3, 5, 23, 2377

Why are those the prime factors of the number 820,065?

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 820,065

820,065
Factor Arrows
3273,355
Factor Arrows
554,671
Factor Arrows
232,377

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:

3, 5, 23, 2377

We can check our work by multiplying all of the prime factors together: 3 x 5 x 23 x 2,377 = 820,065

This can also be written as 31 x 51 x 231 x 2,3771 = 820,065

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


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