Q: What are the prime factors of the number 243,242,871?

 A: 3, 23, 83, 42473

Why are those the prime factors of the number 243,242,871?

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 243,242,871

243,242,871
Factor Arrows
381,080,957
Factor Arrows
233,525,259
Factor Arrows
8342,473

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, 23, 83, 42473

We can check our work by multiplying all of the prime factors together: 3 x 23 x 83 x 42,473 = 243,242,871

This can also be written as 31 x 231 x 831 x 42,4731 = 243,242,871

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 243,242,871:


Ask a Question