Q: What are the prime factors of the number 12,810,496?

 A: 2, 163, 307

Why are those the prime factors of the number 12,810,496?

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 12,810,496

12,810,496
Factor Arrows
26,405,248
Factor Arrows
23,202,624
Factor Arrows
21,601,312
Factor Arrows
2800,656
Factor Arrows
2400,328
Factor Arrows
2200,164
Factor Arrows
2100,082
Factor Arrows
250,041
Factor Arrows
163307

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, 163, 307

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 163 x 307 = 12,810,496

This can also be written as 28 x 1631 x 3071 = 12,810,496

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


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