Q: What are the prime factors of the number 872,586?

 A: 2, 3, 11, 13, 113

Why are those the prime factors of the number 872,586?

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 872,586

872,586
Factor Arrows
2436,293
Factor Arrows
3145,431
Factor Arrows
348,477
Factor Arrows
316,159
Factor Arrows
111,469
Factor Arrows
13113

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, 11, 13, 113

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 3 x 11 x 13 x 113 = 872,586

This can also be written as 21 x 33 x 111 x 131 x 1131 = 872,586

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


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