Q: What are the prime factors of the number 724,512?

 A: 2, 3, 7547

Why are those the prime factors of the number 724,512?

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 724,512

724,512
Factor Arrows
2362,256
Factor Arrows
2181,128
Factor Arrows
290,564
Factor Arrows
245,282
Factor Arrows
222,641
Factor Arrows
37,547

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, 7547

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 7,547 = 724,512

This can also be written as 25 x 31 x 7,5471 = 724,512

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


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