Q: What are the prime factors of the number 68,208?

 A: 2, 3, 7, 29

Why are those the prime factors of the number 68,208?

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 68,208

68,208
Factor Arrows
234,104
Factor Arrows
217,052
Factor Arrows
28,526
Factor Arrows
24,263
Factor Arrows
31,421
Factor Arrows
7203
Factor Arrows
729

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, 7, 29

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 7 x 7 x 29 = 68,208

This can also be written as 24 x 31 x 72 x 291 = 68,208

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 68,208:


Ask a Question