Q: What are the prime factors of the number 511,360?

 A: 2, 5, 17, 47

Why are those the prime factors of the number 511,360?

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 511,360

511,360
Factor Arrows
2255,680
Factor Arrows
2127,840
Factor Arrows
263,920
Factor Arrows
231,960
Factor Arrows
215,980
Factor Arrows
27,990
Factor Arrows
23,995
Factor Arrows
5799
Factor Arrows
1747

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, 5, 17, 47

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 5 x 17 x 47 = 511,360

This can also be written as 27 x 51 x 171 x 471 = 511,360

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


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