Q: What are the prime factors of the number 724,047,687?

 A: 3, 11, 19, 31, 4139

Why are those the prime factors of the number 724,047,687?

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 724,047,687

724,047,687
Factor Arrows
3241,349,229
Factor Arrows
380,449,743
Factor Arrows
326,816,581
Factor Arrows
112,437,871
Factor Arrows
19128,309
Factor Arrows
314,139

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:

3, 11, 19, 31, 4139

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 11 x 19 x 31 x 4,139 = 724,047,687

This can also be written as 33 x 111 x 191 x 311 x 4,1391 = 724,047,687

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


More Examples

Here are some more numbers to try:

Try the factor calculator

Explore more about the number 724,047,687:


Ask a Question