Q: What are the prime factors of the number 25,257,529?

 A: 11, 17, 31, 4357

Why are those the prime factors of the number 25,257,529?

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 25,257,529

25,257,529
Factor Arrows
112,296,139
Factor Arrows
17135,067
Factor Arrows
314,357

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:

11, 17, 31, 4357

We can check our work by multiplying all of the prime factors together: 11 x 17 x 31 x 4,357 = 25,257,529

This can also be written as 111 x 171 x 311 x 4,3571 = 25,257,529

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


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