Q: What are the prime factors of the number 22,827,840?

 A: 2, 3, 5, 7, 43, 79

Why are those the prime factors of the number 22,827,840?

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 22,827,840

22,827,840
Factor Arrows
211,413,920
Factor Arrows
25,706,960
Factor Arrows
22,853,480
Factor Arrows
21,426,740
Factor Arrows
2713,370
Factor Arrows
2356,685
Factor Arrows
3118,895
Factor Arrows
523,779
Factor Arrows
73,397
Factor Arrows
4379

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, 7, 43, 79

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 3 x 5 x 7 x 43 x 79 = 22,827,840

This can also be written as 26 x 31 x 51 x 71 x 431 x 791 = 22,827,840

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 22,827,840:


Ask a Question