Q: What are the prime factors of the number 198,967,424?

 A: 2, 31, 41, 1223

Why are those the prime factors of the number 198,967,424?

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 198,967,424

198,967,424
Factor Arrows
299,483,712
Factor Arrows
249,741,856
Factor Arrows
224,870,928
Factor Arrows
212,435,464
Factor Arrows
26,217,732
Factor Arrows
23,108,866
Factor Arrows
21,554,433
Factor Arrows
3150,143
Factor Arrows
411,223

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, 31, 41, 1223

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 2 x 31 x 41 x 1,223 = 198,967,424

This can also be written as 27 x 311 x 411 x 1,2231 = 198,967,424

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 198,967,424:


Ask a Question