Q: What are the prime factors of the number 731,024,144?

 A: 2, 31, 619, 2381

Why are those the prime factors of the number 731,024,144?

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 731,024,144

731,024,144
Factor Arrows
2365,512,072
Factor Arrows
2182,756,036
Factor Arrows
291,378,018
Factor Arrows
245,689,009
Factor Arrows
311,473,839
Factor Arrows
6192,381

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, 31, 619, 2381

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 31 x 619 x 2,381 = 731,024,144

This can also be written as 24 x 311 x 6191 x 2,3811 = 731,024,144

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 731,024,144:


Ask a Question