Q: What are the prime factors of the number 158,992?

 A: 2, 19, 523

Why are those the prime factors of the number 158,992?

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 158,992

158,992
Factor Arrows
279,496
Factor Arrows
239,748
Factor Arrows
219,874
Factor Arrows
29,937
Factor Arrows
19523

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, 19, 523

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 19 x 523 = 158,992

This can also be written as 24 x 191 x 5231 = 158,992

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


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