Q: What are the prime factors of the number 12,300,625?

 A: 5, 19681

Why are those the prime factors of the number 12,300,625?

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 12,300,625

12,300,625
Factor Arrows
52,460,125
Factor Arrows
5492,025
Factor Arrows
598,405
Factor Arrows
519,681

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:

5, 19681

We can check our work by multiplying all of the prime factors together: 5 x 5 x 5 x 5 x 19,681 = 12,300,625

This can also be written as 54 x 19,6811 = 12,300,625

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


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