Q: What are the prime factors of the number 13,911,680?

 A: 2, 5, 21737

Why are those the prime factors of the number 13,911,680?

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 13,911,680

13,911,680
Factor Arrows
26,955,840
Factor Arrows
23,477,920
Factor Arrows
21,738,960
Factor Arrows
2869,480
Factor Arrows
2434,740
Factor Arrows
2217,370
Factor Arrows
2108,685
Factor Arrows
521,737

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, 21737

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 5 x 21,737 = 13,911,680

This can also be written as 27 x 51 x 21,7371 = 13,911,680

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 13,911,680:


Ask a Question