Q: What are the prime factors of the number 481,581,728?

 A: 2, 23, 654323

Why are those the prime factors of the number 481,581,728?

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 481,581,728

481,581,728
Factor Arrows
2240,790,864
Factor Arrows
2120,395,432
Factor Arrows
260,197,716
Factor Arrows
230,098,858
Factor Arrows
215,049,429
Factor Arrows
23654,323

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, 23, 654323

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 23 x 654,323 = 481,581,728

This can also be written as 25 x 231 x 654,3231 = 481,581,728

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


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