Q: What are the prime factors of the number 2,218,528?

 A: 2, 13, 5333

Why are those the prime factors of the number 2,218,528?

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 2,218,528

2,218,528
Factor Arrows
21,109,264
Factor Arrows
2554,632
Factor Arrows
2277,316
Factor Arrows
2138,658
Factor Arrows
269,329
Factor Arrows
135,333

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, 13, 5333

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 13 x 5,333 = 2,218,528

This can also be written as 25 x 131 x 5,3331 = 2,218,528

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 2,218,528:


Ask a Question