Q: What are the prime factors of the number 523,158?

 A: 2, 3, 17, 23, 223

Why are those the prime factors of the number 523,158?

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 523,158

523,158
Factor Arrows
2261,579
Factor Arrows
387,193
Factor Arrows
175,129
Factor Arrows
23223

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, 17, 23, 223

We can check our work by multiplying all of the prime factors together: 2 x 3 x 17 x 23 x 223 = 523,158

This can also be written as 21 x 31 x 171 x 231 x 2231 = 523,158

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 523,158:


Ask a Question