Q: What are the prime factors of the number 25,797,330?

 A: 2, 3, 5, 13, 17, 1297

Why are those the prime factors of the number 25,797,330?

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 25,797,330

25,797,330
Factor Arrows
212,898,665
Factor Arrows
34,299,555
Factor Arrows
31,433,185
Factor Arrows
5286,637
Factor Arrows
1322,049
Factor Arrows
171,297

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, 5, 13, 17, 1297

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 5 x 13 x 17 x 1,297 = 25,797,330

This can also be written as 21 x 32 x 51 x 131 x 171 x 1,2971 = 25,797,330

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


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