Q: What are the prime factors of the number 31,000,090?

 A: 2, 5, 11, 23, 12253

Why are those the prime factors of the number 31,000,090?

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 31,000,090

31,000,090
Factor Arrows
215,500,045
Factor Arrows
53,100,009
Factor Arrows
11281,819
Factor Arrows
2312,253

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, 5, 11, 23, 12253

We can check our work by multiplying all of the prime factors together: 2 x 5 x 11 x 23 x 12,253 = 31,000,090

This can also be written as 21 x 51 x 111 x 231 x 12,2531 = 31,000,090

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 31,000,090:


Ask a Question