Q: What are the prime factors of the number 18,100,785?

 A: 3, 5, 29, 41611

Why are those the prime factors of the number 18,100,785?

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 18,100,785

18,100,785
Factor Arrows
36,033,595
Factor Arrows
51,206,719
Factor Arrows
2941,611

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, 29, 41611

We can check our work by multiplying all of the prime factors together: 3 x 5 x 29 x 41,611 = 18,100,785

This can also be written as 31 x 51 x 291 x 41,6111 = 18,100,785

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 18,100,785:


Ask a Question