Q: What are the prime factors of the number 258,992?

 A: 2, 16187

Why are those the prime factors of the number 258,992?

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 258,992

258,992
Factor Arrows
2129,496
Factor Arrows
264,748
Factor Arrows
232,374
Factor Arrows
216,187

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, 16187

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 16,187 = 258,992

This can also be written as 24 x 16,1871 = 258,992

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


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