Q: What are the prime factors of the number 497,145?

 A: 3, 5, 11, 23, 131

Why are those the prime factors of the number 497,145?

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 497,145

497,145
Factor Arrows
3165,715
Factor Arrows
533,143
Factor Arrows
113,013
Factor Arrows
23131

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, 5, 11, 23, 131

We can check our work by multiplying all of the prime factors together: 3 x 5 x 11 x 23 x 131 = 497,145

This can also be written as 31 x 51 x 111 x 231 x 1311 = 497,145

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 497,145:


Ask a Question