Q: What are the prime factors of the number 12,021,543?

 A: 3, 613, 2179

Why are those the prime factors of the number 12,021,543?

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 12,021,543

12,021,543
Factor Arrows
34,007,181
Factor Arrows
31,335,727
Factor Arrows
6132,179

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:

3, 613, 2179

We can check our work by multiplying all of the prime factors together: 3 x 3 x 613 x 2,179 = 12,021,543

This can also be written as 32 x 6131 x 2,1791 = 12,021,543

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


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