Q: What are the prime factors of the number 12,124,200?

 A: 2, 3, 5, 11, 167

Why are those the prime factors of the number 12,124,200?

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 12,124,200

12,124,200
Factor Arrows
26,062,100
Factor Arrows
23,031,050
Factor Arrows
21,515,525
Factor Arrows
3505,175
Factor Arrows
5101,035
Factor Arrows
520,207
Factor Arrows
111,837
Factor Arrows
11167

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, 5, 11, 167

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 5 x 5 x 11 x 11 x 167 = 12,124,200

This can also be written as 23 x 31 x 52 x 112 x 1671 = 12,124,200

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


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