Q: What are the prime factors of the number 28,412,704?

 A: 2, 137, 6481

Why are those the prime factors of the number 28,412,704?

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 28,412,704

28,412,704
Factor Arrows
214,206,352
Factor Arrows
27,103,176
Factor Arrows
23,551,588
Factor Arrows
21,775,794
Factor Arrows
2887,897
Factor Arrows
1376,481

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, 137, 6481

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 137 x 6,481 = 28,412,704

This can also be written as 25 x 1371 x 6,4811 = 28,412,704

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


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