Q: What are the prime factors of the number 2,775,424?

 A: 2, 21683

Why are those the prime factors of the number 2,775,424?

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 2,775,424

2,775,424
Factor Arrows
21,387,712
Factor Arrows
2693,856
Factor Arrows
2346,928
Factor Arrows
2173,464
Factor Arrows
286,732
Factor Arrows
243,366
Factor Arrows
221,683

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, 21683

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 2 x 21,683 = 2,775,424

This can also be written as 27 x 21,6831 = 2,775,424

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 2,775,424:


Ask a Question