Q: What are the prime factors of the number 221,504?

 A: 2, 3461

Why are those the prime factors of the number 221,504?

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 221,504

221,504
Factor Arrows
2110,752
Factor Arrows
255,376
Factor Arrows
227,688
Factor Arrows
213,844
Factor Arrows
26,922
Factor Arrows
23,461

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, 3461

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 3,461 = 221,504

This can also be written as 26 x 3,4611 = 221,504

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 221,504:


Ask a Question