Q: What are the prime factors of the number 13,326,558?

 A: 2, 3, 7, 41, 71, 109

Why are those the prime factors of the number 13,326,558?

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 13,326,558

13,326,558
Factor Arrows
26,663,279
Factor Arrows
32,221,093
Factor Arrows
7317,299
Factor Arrows
417,739
Factor Arrows
71109

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, 71, 109

We can check our work by multiplying all of the prime factors together: 2 x 3 x 7 x 41 x 71 x 109 = 13,326,558

This can also be written as 21 x 31 x 71 x 411 x 711 x 1091 = 13,326,558

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


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