Q: What are the prime factors of the number 3,777,280?

 A: 2, 5, 13, 227

Why are those the prime factors of the number 3,777,280?

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 3,777,280

3,777,280
Factor Arrows
21,888,640
Factor Arrows
2944,320
Factor Arrows
2472,160
Factor Arrows
2236,080
Factor Arrows
2118,040
Factor Arrows
259,020
Factor Arrows
229,510
Factor Arrows
214,755
Factor Arrows
52,951
Factor Arrows
13227

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, 5, 13, 227

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 2 x 2 x 5 x 13 x 227 = 3,777,280

This can also be written as 28 x 51 x 131 x 2271 = 3,777,280

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 3,777,280:


Ask a Question