Q: What are the prime factors of the number 243,320,565?

 A: 3, 5, 23, 705277

Why are those the prime factors of the number 243,320,565?

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 243,320,565

243,320,565
Factor Arrows
381,106,855
Factor Arrows
516,221,371
Factor Arrows
23705,277

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:

3, 5, 23, 705277

We can check our work by multiplying all of the prime factors together: 3 x 5 x 23 x 705,277 = 243,320,565

This can also be written as 31 x 51 x 231 x 705,2771 = 243,320,565

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 243,320,565:


Ask a Question