Q: What are the prime factors of the number 25,505,728?

 A: 2, 37, 10771

Why are those the prime factors of the number 25,505,728?

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 25,505,728

25,505,728
Factor Arrows
212,752,864
Factor Arrows
26,376,432
Factor Arrows
23,188,216
Factor Arrows
21,594,108
Factor Arrows
2797,054
Factor Arrows
2398,527
Factor Arrows
3710,771

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, 37, 10771

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 37 x 10,771 = 25,505,728

This can also be written as 26 x 371 x 10,7711 = 25,505,728

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


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