Q: What are the prime factors of the number 2,809,792?

 A: 2, 43, 1021

Why are those the prime factors of the number 2,809,792?

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 2,809,792

2,809,792
Factor Arrows
21,404,896
Factor Arrows
2702,448
Factor Arrows
2351,224
Factor Arrows
2175,612
Factor Arrows
287,806
Factor Arrows
243,903
Factor Arrows
431,021

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, 43, 1021

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 43 x 1,021 = 2,809,792

This can also be written as 26 x 431 x 1,0211 = 2,809,792

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 2,809,792:


Ask a Question