Q: What are the prime factors of the number 20,512,064?

 A: 2, 17, 1109

Why are those the prime factors of the number 20,512,064?

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 20,512,064

20,512,064
Factor Arrows
210,256,032
Factor Arrows
25,128,016
Factor Arrows
22,564,008
Factor Arrows
21,282,004
Factor Arrows
2641,002
Factor Arrows
2320,501
Factor Arrows
1718,853
Factor Arrows
171,109

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, 17, 1109

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 17 x 17 x 1,109 = 20,512,064

This can also be written as 26 x 172 x 1,1091 = 20,512,064

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 20,512,064:


Ask a Question