Q: What are the prime factors of the number 23,681,240?

 A: 2, 5, 11, 107, 503

Why are those the prime factors of the number 23,681,240?

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 23,681,240

23,681,240
Factor Arrows
211,840,620
Factor Arrows
25,920,310
Factor Arrows
22,960,155
Factor Arrows
5592,031
Factor Arrows
1153,821
Factor Arrows
107503

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, 11, 107, 503

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 5 x 11 x 107 x 503 = 23,681,240

This can also be written as 23 x 51 x 111 x 1071 x 5031 = 23,681,240

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 23,681,240:


Ask a Question