Q: What are the prime factors of the number 31,784,808?

 A: 2, 3, 11, 120397

Why are those the prime factors of the number 31,784,808?

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 31,784,808

31,784,808
Factor Arrows
215,892,404
Factor Arrows
27,946,202
Factor Arrows
23,973,101
Factor Arrows
31,324,367
Factor Arrows
11120,397

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, 11, 120397

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 11 x 120,397 = 31,784,808

This can also be written as 23 x 31 x 111 x 120,3971 = 31,784,808

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 31,784,808:


Ask a Question