Q: What are the prime factors of the number 13,168,926?

 A: 2, 3, 23, 461

Why are those the prime factors of the number 13,168,926?

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 13,168,926

13,168,926
Factor Arrows
26,584,463
Factor Arrows
32,194,821
Factor Arrows
3731,607
Factor Arrows
3243,869
Factor Arrows
2310,603
Factor Arrows
23461

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, 23, 461

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 3 x 23 x 23 x 461 = 13,168,926

This can also be written as 21 x 33 x 232 x 4611 = 13,168,926

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


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