Q: What are the prime factors of the number 12,645,632?

 A: 2, 47, 1051

Why are those the prime factors of the number 12,645,632?

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 12,645,632

12,645,632
Factor Arrows
26,322,816
Factor Arrows
23,161,408
Factor Arrows
21,580,704
Factor Arrows
2790,352
Factor Arrows
2395,176
Factor Arrows
2197,588
Factor Arrows
298,794
Factor Arrows
249,397
Factor Arrows
471,051

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, 47, 1051

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 2 x 47 x 1,051 = 12,645,632

This can also be written as 28 x 471 x 1,0511 = 12,645,632

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


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