Q: What are the prime factors of the number 26,478,837?

 A: 3, 7, 11, 19, 2011

Why are those the prime factors of the number 26,478,837?

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 26,478,837

26,478,837
Factor Arrows
38,826,279
Factor Arrows
32,942,093
Factor Arrows
7420,299
Factor Arrows
1138,209
Factor Arrows
192,011

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, 7, 11, 19, 2011

We can check our work by multiplying all of the prime factors together: 3 x 3 x 7 x 11 x 19 x 2,011 = 26,478,837

This can also be written as 32 x 71 x 111 x 191 x 2,0111 = 26,478,837

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


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