Q: What are the prime factors of the number 28,045,344?

 A: 2, 3, 389, 751

Why are those the prime factors of the number 28,045,344?

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 28,045,344

28,045,344
Factor Arrows
214,022,672
Factor Arrows
27,011,336
Factor Arrows
23,505,668
Factor Arrows
21,752,834
Factor Arrows
2876,417
Factor Arrows
3292,139
Factor Arrows
389751

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, 389, 751

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 389 x 751 = 28,045,344

This can also be written as 25 x 31 x 3891 x 7511 = 28,045,344

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


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