Q: What are the prime factors of the number 345,270?

 A: 2, 3, 5, 17, 677

Why are those the prime factors of the number 345,270?

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 345,270

345,270
Factor Arrows
2172,635
Factor Arrows
357,545
Factor Arrows
511,509
Factor Arrows
17677

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, 17, 677

We can check our work by multiplying all of the prime factors together: 2 x 3 x 5 x 17 x 677 = 345,270

This can also be written as 21 x 31 x 51 x 171 x 6771 = 345,270

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 345,270:


Ask a Question