Q: What are the prime factors of the number 823,204,209?

 A: 3, 17, 83, 113, 1721

Why are those the prime factors of the number 823,204,209?

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 823,204,209

823,204,209
Factor Arrows
3274,401,403
Factor Arrows
1716,141,259
Factor Arrows
83194,473
Factor Arrows
1131,721

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, 17, 83, 113, 1721

We can check our work by multiplying all of the prime factors together: 3 x 17 x 83 x 113 x 1,721 = 823,204,209

This can also be written as 31 x 171 x 831 x 1131 x 1,7211 = 823,204,209

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 823,204,209:


Ask a Question