Q: What are the prime factors of the number 731,936?

 A: 2, 89, 257

Why are those the prime factors of the number 731,936?

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 731,936

731,936
Factor Arrows
2365,968
Factor Arrows
2182,984
Factor Arrows
291,492
Factor Arrows
245,746
Factor Arrows
222,873
Factor Arrows
89257

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, 89, 257

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 89 x 257 = 731,936

This can also be written as 25 x 891 x 2571 = 731,936

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 731,936:


Ask a Question