Q: What are the prime factors of the number 221,254,404?

 A: 2, 3, 7, 376283

Why are those the prime factors of the number 221,254,404?

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 221,254,404

221,254,404
Factor Arrows
2110,627,202
Factor Arrows
255,313,601
Factor Arrows
318,437,867
Factor Arrows
72,633,981
Factor Arrows
7376,283

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, 3, 7, 376283

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 7 x 7 x 376,283 = 221,254,404

This can also be written as 22 x 31 x 72 x 376,2831 = 221,254,404

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 221,254,404:


Ask a Question