Q: What are the prime factors of the number 156,832?

 A: 2, 13, 29

Why are those the prime factors of the number 156,832?

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 156,832

156,832
Factor Arrows
278,416
Factor Arrows
239,208
Factor Arrows
219,604
Factor Arrows
29,802
Factor Arrows
24,901
Factor Arrows
13377
Factor Arrows
1329

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, 13, 29

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 13 x 13 x 29 = 156,832

This can also be written as 25 x 132 x 291 = 156,832

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


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