Q: What are the prime factors of the number 213,421,311?

 A: 3, 292759

Why are those the prime factors of the number 213,421,311?

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 213,421,311

213,421,311
Factor Arrows
371,140,437
Factor Arrows
323,713,479
Factor Arrows
37,904,493
Factor Arrows
32,634,831
Factor Arrows
3878,277
Factor Arrows
3292,759

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, 292759

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 3 x 3 x 3 x 292,759 = 213,421,311

This can also be written as 36 x 292,7591 = 213,421,311

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 213,421,311:


Ask a Question