Q: What are the prime factors of the number 12,315,852?

 A: 2, 3, 342107

Why are those the prime factors of the number 12,315,852?

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 12,315,852

12,315,852
Factor Arrows
26,157,926
Factor Arrows
23,078,963
Factor Arrows
31,026,321
Factor Arrows
3342,107

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, 3, 342107

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 342,107 = 12,315,852

This can also be written as 22 x 32 x 342,1071 = 12,315,852

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


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