Q: What are the prime factors of the number 166,840,128?

 A: 2, 3, 7, 13, 1061

Why are those the prime factors of the number 166,840,128?

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 166,840,128

166,840,128
Factor Arrows
283,420,064
Factor Arrows
241,710,032
Factor Arrows
220,855,016
Factor Arrows
210,427,508
Factor Arrows
25,213,754
Factor Arrows
22,606,877
Factor Arrows
3868,959
Factor Arrows
3289,653
Factor Arrows
396,551
Factor Arrows
713,793
Factor Arrows
131,061

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, 13, 1061

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 3 x 3 x 3 x 7 x 13 x 1,061 = 166,840,128

This can also be written as 26 x 33 x 71 x 131 x 1,0611 = 166,840,128

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 166,840,128:


Ask a Question