Q: What are the prime factors of the number 25,178,472?

 A: 2, 3, 11, 10597

Why are those the prime factors of the number 25,178,472?

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 25,178,472

25,178,472
Factor Arrows
212,589,236
Factor Arrows
26,294,618
Factor Arrows
23,147,309
Factor Arrows
31,049,103
Factor Arrows
3349,701
Factor Arrows
3116,567
Factor Arrows
1110,597

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, 11, 10597

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 3 x 3 x 11 x 10,597 = 25,178,472

This can also be written as 23 x 33 x 111 x 10,5971 = 25,178,472

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 25,178,472:


Ask a Question