Q: What are the prime factors of the number 25,143,744?

 A: 2, 3, 130957

Why are those the prime factors of the number 25,143,744?

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 25,143,744

25,143,744
Factor Arrows
212,571,872
Factor Arrows
26,285,936
Factor Arrows
23,142,968
Factor Arrows
21,571,484
Factor Arrows
2785,742
Factor Arrows
2392,871
Factor Arrows
3130,957

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, 130957

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 3 x 130,957 = 25,143,744

This can also be written as 26 x 31 x 130,9571 = 25,143,744

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


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