Q: What are the prime factors of the number 12,125,152?

 A: 2, 13, 29147

Why are those the prime factors of the number 12,125,152?

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 12,125,152

12,125,152
Factor Arrows
26,062,576
Factor Arrows
23,031,288
Factor Arrows
21,515,644
Factor Arrows
2757,822
Factor Arrows
2378,911
Factor Arrows
1329,147

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, 13, 29147

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 13 x 29,147 = 12,125,152

This can also be written as 25 x 131 x 29,1471 = 12,125,152

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


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