Q: What are the prime factors of the number 12,685,008?

 A: 2, 3, 7, 19, 1987

Why are those the prime factors of the number 12,685,008?

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 12,685,008

12,685,008
Factor Arrows
26,342,504
Factor Arrows
23,171,252
Factor Arrows
21,585,626
Factor Arrows
2792,813
Factor Arrows
3264,271
Factor Arrows
737,753
Factor Arrows
191,987

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, 7, 19, 1987

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 7 x 19 x 1,987 = 12,685,008

This can also be written as 24 x 31 x 71 x 191 x 1,9871 = 12,685,008

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


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