Q: What are the prime factors of the number 20,911,094?

 A: 2, 23, 499, 911

Why are those the prime factors of the number 20,911,094?

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 20,911,094

20,911,094
Factor Arrows
210,455,547
Factor Arrows
23454,589
Factor Arrows
499911

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, 23, 499, 911

We can check our work by multiplying all of the prime factors together: 2 x 23 x 499 x 911 = 20,911,094

This can also be written as 21 x 231 x 4991 x 9111 = 20,911,094

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 20,911,094:


Ask a Question