Q: What are the prime factors of the number 12,947,704?

 A: 2, 7, 11, 21019

Why are those the prime factors of the number 12,947,704?

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 12,947,704

12,947,704
Factor Arrows
26,473,852
Factor Arrows
23,236,926
Factor Arrows
21,618,463
Factor Arrows
7231,209
Factor Arrows
1121,019

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, 7, 11, 21019

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 7 x 11 x 21,019 = 12,947,704

This can also be written as 23 x 71 x 111 x 21,0191 = 12,947,704

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


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