Q: What are the prime factors of the number 162,531,520?

 A: 2, 5, 463, 1097

Why are those the prime factors of the number 162,531,520?

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 162,531,520

162,531,520
Factor Arrows
281,265,760
Factor Arrows
240,632,880
Factor Arrows
220,316,440
Factor Arrows
210,158,220
Factor Arrows
25,079,110
Factor Arrows
22,539,555
Factor Arrows
5507,911
Factor Arrows
4631,097

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, 463, 1097

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 5 x 463 x 1,097 = 162,531,520

This can also be written as 26 x 51 x 4631 x 1,0971 = 162,531,520

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 162,531,520:


Ask a Question