Q: What are the prime factors of the number 13,011,198?

 A: 2, 3, 29, 37, 43, 47

Why are those the prime factors of the number 13,011,198?

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 13,011,198

13,011,198
Factor Arrows
26,505,599
Factor Arrows
32,168,533
Factor Arrows
2974,777
Factor Arrows
372,021
Factor Arrows
4347

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, 29, 37, 43, 47

We can check our work by multiplying all of the prime factors together: 2 x 3 x 29 x 37 x 43 x 47 = 13,011,198

This can also be written as 21 x 31 x 291 x 371 x 431 x 471 = 13,011,198

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


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