Q: What are the prime factors of the number 2,385,855?

 A: 3, 5, 43, 137

Why are those the prime factors of the number 2,385,855?

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 2,385,855

2,385,855
Factor Arrows
3795,285
Factor Arrows
3265,095
Factor Arrows
388,365
Factor Arrows
329,455
Factor Arrows
55,891
Factor Arrows
43137

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, 43, 137

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 3 x 5 x 43 x 137 = 2,385,855

This can also be written as 34 x 51 x 431 x 1371 = 2,385,855

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 2,385,855:


Ask a Question