Q: What are the prime factors of the number 836,580?

 A: 2, 3, 5, 73, 191

Why are those the prime factors of the number 836,580?

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 836,580

836,580
Factor Arrows
2418,290
Factor Arrows
2209,145
Factor Arrows
369,715
Factor Arrows
513,943
Factor Arrows
73191

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, 5, 73, 191

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 5 x 73 x 191 = 836,580

This can also be written as 22 x 31 x 51 x 731 x 1911 = 836,580

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


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