Q: What are the prime factors of the number 30,820,812?

 A: 2, 3, 11, 19, 12289

Why are those the prime factors of the number 30,820,812?

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 30,820,812

30,820,812
Factor Arrows
215,410,406
Factor Arrows
27,705,203
Factor Arrows
32,568,401
Factor Arrows
11233,491
Factor Arrows
1912,289

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, 19, 12289

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 11 x 19 x 12,289 = 30,820,812

This can also be written as 22 x 31 x 111 x 191 x 12,2891 = 30,820,812

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 30,820,812:


Ask a Question