Q: What are the prime factors of the number 23,211,744?

 A: 2, 3, 43, 5623

Why are those the prime factors of the number 23,211,744?

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 23,211,744

23,211,744
Factor Arrows
211,605,872
Factor Arrows
25,802,936
Factor Arrows
22,901,468
Factor Arrows
21,450,734
Factor Arrows
2725,367
Factor Arrows
3241,789
Factor Arrows
435,623

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, 43, 5623

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 43 x 5,623 = 23,211,744

This can also be written as 25 x 31 x 431 x 5,6231 = 23,211,744

If you would like to know more, or need additional explanation, please review our prime factorization explanation.


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