Q: What are the prime factors of the number 831,232?

 A: 2, 17, 191

Why are those the prime factors of the number 831,232?

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 831,232

831,232
Factor Arrows
2415,616
Factor Arrows
2207,808
Factor Arrows
2103,904
Factor Arrows
251,952
Factor Arrows
225,976
Factor Arrows
212,988
Factor Arrows
26,494
Factor Arrows
23,247
Factor Arrows
17191

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, 17, 191

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 17 x 191 = 831,232

This can also be written as 28 x 171 x 1911 = 831,232

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


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