Q: What are the prime factors of the number 351,285?

 A: 3, 5, 11, 2129

Why are those the prime factors of the number 351,285?

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 351,285

351,285
Factor Arrows
3117,095
Factor Arrows
523,419
Factor Arrows
112,129

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, 2129

We can check our work by multiplying all of the prime factors together: 3 x 5 x 11 x 2,129 = 351,285

This can also be written as 31 x 51 x 111 x 2,1291 = 351,285

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 351,285:


Ask a Question