Q: What are the prime factors of the number 156,005,889?

 A: 3, 13, 17, 167, 1409

Why are those the prime factors of the number 156,005,889?

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 156,005,889

156,005,889
Factor Arrows
352,001,963
Factor Arrows
134,000,151
Factor Arrows
17235,303
Factor Arrows
1671,409

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, 13, 17, 167, 1409

We can check our work by multiplying all of the prime factors together: 3 x 13 x 17 x 167 x 1,409 = 156,005,889

This can also be written as 31 x 131 x 171 x 1671 x 1,4091 = 156,005,889

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 156,005,889:


Ask a Question