Q: What are the prime factors of the number 12,313,560?

 A: 2, 3, 5, 7, 107, 137

Why are those the prime factors of the number 12,313,560?

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 12,313,560

12,313,560
Factor Arrows
26,156,780
Factor Arrows
23,078,390
Factor Arrows
21,539,195
Factor Arrows
3513,065
Factor Arrows
5102,613
Factor Arrows
714,659
Factor Arrows
107137

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, 5, 7, 107, 137

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 5 x 7 x 107 x 137 = 12,313,560

This can also be written as 23 x 31 x 51 x 71 x 1071 x 1371 = 12,313,560

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


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