Q: What are the prime factors of the number 100,130?

 A: 2, 5, 17, 19, 31

Why are those the prime factors of the number 100,130?

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 100,130

100,130
Factor Arrows
250,065
Factor Arrows
510,013
Factor Arrows
17589
Factor Arrows
1931

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, 17, 19, 31

We can check our work by multiplying all of the prime factors together: 2 x 5 x 17 x 19 x 31 = 100,130

This can also be written as 21 x 51 x 171 x 191 x 311 = 100,130

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 100,130:


Ask a Question