Q: What are the prime factors of the number 12,123,400?

 A: 2, 5, 60617

Why are those the prime factors of the number 12,123,400?

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 12,123,400

12,123,400
Factor Arrows
26,061,700
Factor Arrows
23,030,850
Factor Arrows
21,515,425
Factor Arrows
5303,085
Factor Arrows
560,617

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, 5, 60617

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 5 x 5 x 60,617 = 12,123,400

This can also be written as 23 x 52 x 60,6171 = 12,123,400

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


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