Q: What are the prime factors of the number 12,192,460?

 A: 2, 5, 7, 73, 1193

Why are those the prime factors of the number 12,192,460?

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 12,192,460

12,192,460
Factor Arrows
26,096,230
Factor Arrows
23,048,115
Factor Arrows
5609,623
Factor Arrows
787,089
Factor Arrows
731,193

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, 7, 73, 1193

We can check our work by multiplying all of the prime factors together: 2 x 2 x 5 x 7 x 73 x 1,193 = 12,192,460

This can also be written as 22 x 51 x 71 x 731 x 1,1931 = 12,192,460

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


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