Q: What are the prime factors of the number 221,882,388?

 A: 2, 3, 7, 13, 29027

Why are those the prime factors of the number 221,882,388?

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 221,882,388

221,882,388
Factor Arrows
2110,941,194
Factor Arrows
255,470,597
Factor Arrows
318,490,199
Factor Arrows
72,641,457
Factor Arrows
7377,351
Factor Arrows
1329,027

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, 13, 29027

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 7 x 7 x 13 x 29,027 = 221,882,388

This can also be written as 22 x 31 x 72 x 131 x 29,0271 = 221,882,388

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 221,882,388:


Ask a Question