Q: What are the prime factors of the number 133,210,028?

 A: 2, 7, 17, 39979

Why are those the prime factors of the number 133,210,028?

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 133,210,028

133,210,028
Factor Arrows
266,605,014
Factor Arrows
233,302,507
Factor Arrows
74,757,501
Factor Arrows
7679,643
Factor Arrows
1739,979

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, 7, 17, 39979

We can check our work by multiplying all of the prime factors together: 2 x 2 x 7 x 7 x 17 x 39,979 = 133,210,028

This can also be written as 22 x 72 x 171 x 39,9791 = 133,210,028

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 133,210,028:


Ask a Question