Q: What are the prime factors of the number 522,560?

 A: 2, 5, 23, 71

Why are those the prime factors of the number 522,560?

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 522,560

522,560
Factor Arrows
2261,280
Factor Arrows
2130,640
Factor Arrows
265,320
Factor Arrows
232,660
Factor Arrows
216,330
Factor Arrows
28,165
Factor Arrows
51,633
Factor Arrows
2371

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, 23, 71

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 5 x 23 x 71 = 522,560

This can also be written as 26 x 51 x 231 x 711 = 522,560

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


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