Q: What are the prime factors of the number 517,104?

 A: 2, 3, 7, 19

Why are those the prime factors of the number 517,104?

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 517,104

517,104
Factor Arrows
2258,552
Factor Arrows
2129,276
Factor Arrows
264,638
Factor Arrows
232,319
Factor Arrows
310,773
Factor Arrows
33,591
Factor Arrows
31,197
Factor Arrows
3399
Factor Arrows
3133
Factor Arrows
719

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, 7, 19

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 3 x 3 x 3 x 3 x 7 x 19 = 517,104

This can also be written as 24 x 35 x 71 x 191 = 517,104

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


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