Q: What are the prime factors of the number 831,552?

 A: 2, 3, 61, 71

Why are those the prime factors of the number 831,552?

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 831,552

831,552
Factor Arrows
2415,776
Factor Arrows
2207,888
Factor Arrows
2103,944
Factor Arrows
251,972
Factor Arrows
225,986
Factor Arrows
212,993
Factor Arrows
34,331
Factor Arrows
6171

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, 61, 71

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 3 x 61 x 71 = 831,552

This can also be written as 26 x 31 x 611 x 711 = 831,552

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


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