Q: What are the prime factors of the number 22,491,744?

 A: 2, 3, 11, 19, 59

Why are those the prime factors of the number 22,491,744?

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 22,491,744

22,491,744
Factor Arrows
211,245,872
Factor Arrows
25,622,936
Factor Arrows
22,811,468
Factor Arrows
21,405,734
Factor Arrows
2702,867
Factor Arrows
3234,289
Factor Arrows
1121,299
Factor Arrows
191,121
Factor Arrows
1959

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, 11, 19, 59

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 3 x 11 x 19 x 19 x 59 = 22,491,744

This can also be written as 25 x 31 x 111 x 192 x 591 = 22,491,744

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 22,491,744:


Ask a Question