Q: What are the prime factors of the number 395,072?

 A: 2, 6173

Why are those the prime factors of the number 395,072?

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 395,072

395,072
Factor Arrows
2197,536
Factor Arrows
298,768
Factor Arrows
249,384
Factor Arrows
224,692
Factor Arrows
212,346
Factor Arrows
26,173

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, 6173

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 6,173 = 395,072

This can also be written as 26 x 6,1731 = 395,072

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 395,072:


Ask a Question