Q: What are the prime factors of the number 649,936?

 A: 2, 7, 829

Why are those the prime factors of the number 649,936?

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 649,936

649,936
Factor Arrows
2324,968
Factor Arrows
2162,484
Factor Arrows
281,242
Factor Arrows
240,621
Factor Arrows
75,803
Factor Arrows
7829

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, 7, 829

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 7 x 7 x 829 = 649,936

This can also be written as 24 x 72 x 8291 = 649,936

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 649,936:


Ask a Question