Q: What are the prime factors of the number 12,724,576?

 A: 2, 397643

Why are those the prime factors of the number 12,724,576?

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 12,724,576

12,724,576
Factor Arrows
26,362,288
Factor Arrows
23,181,144
Factor Arrows
21,590,572
Factor Arrows
2795,286
Factor Arrows
2397,643

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, 397643

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 397,643 = 12,724,576

This can also be written as 25 x 397,6431 = 12,724,576

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


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