Q: What are the prime factors of the number 709,824?

 A: 2, 3, 3697

Why are those the prime factors of the number 709,824?

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 709,824

709,824
Factor Arrows
2354,912
Factor Arrows
2177,456
Factor Arrows
288,728
Factor Arrows
244,364
Factor Arrows
222,182
Factor Arrows
211,091
Factor Arrows
33,697

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, 3697

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 3 x 3,697 = 709,824

This can also be written as 26 x 31 x 3,6971 = 709,824

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


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