Q: What are the prime factors of the number 255,488?

 A: 2, 499

Why are those the prime factors of the number 255,488?

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 255,488

255,488
Factor Arrows
2127,744
Factor Arrows
263,872
Factor Arrows
231,936
Factor Arrows
215,968
Factor Arrows
27,984
Factor Arrows
23,992
Factor Arrows
21,996
Factor Arrows
2998
Factor Arrows
2499

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, 499

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 2 x 499 = 255,488

This can also be written as 29 x 4991 = 255,488

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


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