Q: What are the prime factors of the number 532,320?

 A: 2, 3, 5, 1109

Why are those the prime factors of the number 532,320?

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 532,320

532,320
Factor Arrows
2266,160
Factor Arrows
2133,080
Factor Arrows
266,540
Factor Arrows
233,270
Factor Arrows
216,635
Factor Arrows
35,545
Factor Arrows
51,109

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, 5, 1109

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 3 x 5 x 1,109 = 532,320

This can also be written as 25 x 31 x 51 x 1,1091 = 532,320

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


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