Q: What are the prime factors of the number 255,150,144?

 A: 2, 3, 17, 71, 367

Why are those the prime factors of the number 255,150,144?

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 255,150,144

255,150,144
Factor Arrows
2127,575,072
Factor Arrows
263,787,536
Factor Arrows
231,893,768
Factor Arrows
215,946,884
Factor Arrows
27,973,442
Factor Arrows
23,986,721
Factor Arrows
31,328,907
Factor Arrows
3442,969
Factor Arrows
1726,057
Factor Arrows
71367

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, 17, 71, 367

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 3 x 17 x 71 x 367 = 255,150,144

This can also be written as 26 x 32 x 171 x 711 x 3671 = 255,150,144

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


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