Q: What are the prime factors of the number 512,320?

 A: 2, 5, 1601

Why are those the prime factors of the number 512,320?

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 512,320

512,320
Factor Arrows
2256,160
Factor Arrows
2128,080
Factor Arrows
264,040
Factor Arrows
232,020
Factor Arrows
216,010
Factor Arrows
28,005
Factor Arrows
51,601

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, 1601

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 1,601 = 512,320

This can also be written as 26 x 51 x 1,6011 = 512,320

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


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