Q: What are the prime factors of the number 2,729,925?

 A: 3, 5, 11, 1103

Why are those the prime factors of the number 2,729,925?

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 2,729,925

2,729,925
Factor Arrows
3909,975
Factor Arrows
3303,325
Factor Arrows
560,665
Factor Arrows
512,133
Factor Arrows
111,103

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:

3, 5, 11, 1103

We can check our work by multiplying all of the prime factors together: 3 x 3 x 5 x 5 x 11 x 1,103 = 2,729,925

This can also be written as 32 x 52 x 111 x 1,1031 = 2,729,925

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 2,729,925:


Ask a Question