Q: What are the prime factors of the number 531,900?

 A: 2, 3, 5, 197

Why are those the prime factors of the number 531,900?

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 531,900

531,900
Factor Arrows
2265,950
Factor Arrows
2132,975
Factor Arrows
344,325
Factor Arrows
314,775
Factor Arrows
34,925
Factor Arrows
5985
Factor Arrows
5197

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, 5, 197

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 3 x 5 x 5 x 197 = 531,900

This can also be written as 22 x 33 x 52 x 1971 = 531,900

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 531,900:


Ask a Question