Q: What are the prime factors of the number 13,187,076?

 A: 2, 3, 7, 41, 547

Why are those the prime factors of the number 13,187,076?

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 13,187,076

13,187,076
Factor Arrows
26,593,538
Factor Arrows
23,296,769
Factor Arrows
31,098,923
Factor Arrows
7156,989
Factor Arrows
722,427
Factor Arrows
41547

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, 7, 41, 547

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 7 x 7 x 41 x 547 = 13,187,076

This can also be written as 22 x 31 x 72 x 411 x 5471 = 13,187,076

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


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