Q: What are the prime factors of the number 522,784?

 A: 2, 17, 31

Why are those the prime factors of the number 522,784?

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 522,784

522,784
Factor Arrows
2261,392
Factor Arrows
2130,696
Factor Arrows
265,348
Factor Arrows
232,674
Factor Arrows
216,337
Factor Arrows
17961
Factor Arrows
3131

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, 17, 31

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 17 x 31 x 31 = 522,784

This can also be written as 25 x 171 x 312 = 522,784

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


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