Q: What are the prime factors of the number 12,871,808?

 A: 2, 227, 443

Why are those the prime factors of the number 12,871,808?

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 12,871,808

12,871,808
Factor Arrows
26,435,904
Factor Arrows
23,217,952
Factor Arrows
21,608,976
Factor Arrows
2804,488
Factor Arrows
2402,244
Factor Arrows
2201,122
Factor Arrows
2100,561
Factor Arrows
227443

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, 227, 443

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 2 x 227 x 443 = 12,871,808

This can also be written as 27 x 2271 x 4431 = 12,871,808

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


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