Q: What are the prime factors of the number 2,114,640?

 A: 2, 3, 5, 11, 89

Why are those the prime factors of the number 2,114,640?

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 2,114,640

2,114,640
Factor Arrows
21,057,320
Factor Arrows
2528,660
Factor Arrows
2264,330
Factor Arrows
2132,165
Factor Arrows
344,055
Factor Arrows
314,685
Factor Arrows
34,895
Factor Arrows
5979
Factor Arrows
1189

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, 5, 11, 89

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 3 x 3 x 5 x 11 x 89 = 2,114,640

This can also be written as 24 x 33 x 51 x 111 x 891 = 2,114,640

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 2,114,640:


Ask a Question