Q: What are the prime factors of the number 684,864?

 A: 2, 3, 29, 41

Why are those the prime factors of the number 684,864?

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 684,864

684,864
Factor Arrows
2342,432
Factor Arrows
2171,216
Factor Arrows
285,608
Factor Arrows
242,804
Factor Arrows
221,402
Factor Arrows
210,701
Factor Arrows
33,567
Factor Arrows
31,189
Factor Arrows
2941

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, 29, 41

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 3 x 3 x 29 x 41 = 684,864

This can also be written as 26 x 32 x 291 x 411 = 684,864

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 684,864:


Ask a Question