Q: What are the prime factors of the number 12,791,888?

 A: 2, 17, 131, 359

Why are those the prime factors of the number 12,791,888?

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 12,791,888

12,791,888
Factor Arrows
26,395,944
Factor Arrows
23,197,972
Factor Arrows
21,598,986
Factor Arrows
2799,493
Factor Arrows
1747,029
Factor Arrows
131359

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, 17, 131, 359

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 17 x 131 x 359 = 12,791,888

This can also be written as 24 x 171 x 1311 x 3591 = 12,791,888

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


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