Q: What are the prime factors of the number 28,199,744?

 A: 2, 43, 10247

Why are those the prime factors of the number 28,199,744?

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 28,199,744

28,199,744
Factor Arrows
214,099,872
Factor Arrows
27,049,936
Factor Arrows
23,524,968
Factor Arrows
21,762,484
Factor Arrows
2881,242
Factor Arrows
2440,621
Factor Arrows
4310,247

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, 43, 10247

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 43 x 10,247 = 28,199,744

This can also be written as 26 x 431 x 10,2471 = 28,199,744

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


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