Q: What are the prime factors of the number 390,342?

 A: 2, 3, 67, 971

Why are those the prime factors of the number 390,342?

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 390,342

390,342
Factor Arrows
2195,171
Factor Arrows
365,057
Factor Arrows
67971

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, 67, 971

We can check our work by multiplying all of the prime factors together: 2 x 3 x 67 x 971 = 390,342

This can also be written as 21 x 31 x 671 x 9711 = 390,342

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 390,342:


Ask a Question