Q: What are the prime factors of the number 891,912?

 A: 2, 3, 7, 5309

Why are those the prime factors of the number 891,912?

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 891,912

891,912
Factor Arrows
2445,956
Factor Arrows
2222,978
Factor Arrows
2111,489
Factor Arrows
337,163
Factor Arrows
75,309

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, 7, 5309

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 7 x 5,309 = 891,912

This can also be written as 23 x 31 x 71 x 5,3091 = 891,912

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 891,912:


Ask a Question