Q: What are the prime factors of the number 19,570,521?

 A: 3, 37, 157, 1123

Why are those the prime factors of the number 19,570,521?

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 19,570,521

19,570,521
Factor Arrows
36,523,507
Factor Arrows
37176,311
Factor Arrows
1571,123

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, 37, 157, 1123

We can check our work by multiplying all of the prime factors together: 3 x 37 x 157 x 1,123 = 19,570,521

This can also be written as 31 x 371 x 1571 x 1,1231 = 19,570,521

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 19,570,521:


Ask a Question