Q: What are the prime factors of the number 26,690,976?

 A: 2, 3, 13, 7129

Why are those the prime factors of the number 26,690,976?

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 26,690,976

26,690,976
Factor Arrows
213,345,488
Factor Arrows
26,672,744
Factor Arrows
23,336,372
Factor Arrows
21,668,186
Factor Arrows
2834,093
Factor Arrows
3278,031
Factor Arrows
392,677
Factor Arrows
137,129

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, 13, 7129

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 3 x 3 x 13 x 7,129 = 26,690,976

This can also be written as 25 x 32 x 131 x 7,1291 = 26,690,976

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


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