Q: What are the prime factors of the number 25,615,800?

 A: 2, 3, 5, 7, 19, 107

Why are those the prime factors of the number 25,615,800?

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 25,615,800

25,615,800
Factor Arrows
212,807,900
Factor Arrows
26,403,950
Factor Arrows
23,201,975
Factor Arrows
31,067,325
Factor Arrows
3355,775
Factor Arrows
571,155
Factor Arrows
514,231
Factor Arrows
72,033
Factor Arrows
19107

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, 5, 7, 19, 107

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 3 x 5 x 5 x 7 x 19 x 107 = 25,615,800

This can also be written as 23 x 32 x 52 x 71 x 191 x 1071 = 25,615,800

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 25,615,800:


Ask a Question