Q: What are the prime factors of the number 812,157,804?

 A: 2, 3, 317, 71167

Why are those the prime factors of the number 812,157,804?

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 812,157,804

812,157,804
Factor Arrows
2406,078,902
Factor Arrows
2203,039,451
Factor Arrows
367,679,817
Factor Arrows
322,559,939
Factor Arrows
31771,167

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, 3, 317, 71167

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 317 x 71,167 = 812,157,804

This can also be written as 22 x 32 x 3171 x 71,1671 = 812,157,804

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 812,157,804:


Ask a Question