Q: What are the prime factors of the number 25,903,648?

 A: 2, 17, 2801

Why are those the prime factors of the number 25,903,648?

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 25,903,648

25,903,648
Factor Arrows
212,951,824
Factor Arrows
26,475,912
Factor Arrows
23,237,956
Factor Arrows
21,618,978
Factor Arrows
2809,489
Factor Arrows
1747,617
Factor Arrows
172,801

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, 17, 2801

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 17 x 17 x 2,801 = 25,903,648

This can also be written as 25 x 172 x 2,8011 = 25,903,648

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


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