Q: What are the prime factors of the number 25,816,119?

 A: 3, 7, 29, 42391

Why are those the prime factors of the number 25,816,119?

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 25,816,119

25,816,119
Factor Arrows
38,605,373
Factor Arrows
71,229,339
Factor Arrows
2942,391

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, 29, 42391

We can check our work by multiplying all of the prime factors together: 3 x 7 x 29 x 42,391 = 25,816,119

This can also be written as 31 x 71 x 291 x 42,3911 = 25,816,119

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


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