Q: What are the prime factors of the number 688,688?

 A: 2, 7, 11, 13, 43

Why are those the prime factors of the number 688,688?

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 688,688

688,688
Factor Arrows
2344,344
Factor Arrows
2172,172
Factor Arrows
286,086
Factor Arrows
243,043
Factor Arrows
76,149
Factor Arrows
11559
Factor Arrows
1343

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, 7, 11, 13, 43

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 7 x 11 x 13 x 43 = 688,688

This can also be written as 24 x 71 x 111 x 131 x 431 = 688,688

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 688,688:


Ask a Question