Q: What are the prime factors of the number 162,655,605?

 A: 3, 5, 7, 31, 16657

Why are those the prime factors of the number 162,655,605?

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 162,655,605

162,655,605
Factor Arrows
354,218,535
Factor Arrows
318,072,845
Factor Arrows
53,614,569
Factor Arrows
7516,367
Factor Arrows
3116,657

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:

3, 5, 7, 31, 16657

We can check our work by multiplying all of the prime factors together: 3 x 3 x 5 x 7 x 31 x 16,657 = 162,655,605

This can also be written as 32 x 51 x 71 x 311 x 16,6571 = 162,655,605

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 162,655,605:


Ask a Question