Q: What are the prime factors of the number 20,757,528?

 A: 2, 3, 11, 26209

Why are those the prime factors of the number 20,757,528?

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 20,757,528

20,757,528
Factor Arrows
210,378,764
Factor Arrows
25,189,382
Factor Arrows
22,594,691
Factor Arrows
3864,897
Factor Arrows
3288,299
Factor Arrows
1126,209

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, 11, 26209

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 3 x 11 x 26,209 = 20,757,528

This can also be written as 23 x 32 x 111 x 26,2091 = 20,757,528

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 20,757,528:


Ask a Question