Q: What are the prime factors of the number 25,406,144?

 A: 2, 396971

Why are those the prime factors of the number 25,406,144?

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 25,406,144

25,406,144
Factor Arrows
212,703,072
Factor Arrows
26,351,536
Factor Arrows
23,175,768
Factor Arrows
21,587,884
Factor Arrows
2793,942
Factor Arrows
2396,971

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, 396971

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 396,971 = 25,406,144

This can also be written as 26 x 396,9711 = 25,406,144

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


More Examples

Here are some more numbers to try:

Try the factor calculator

Explore more about the number 25,406,144:


Ask a Question