Q: What are the prime factors of the number 261,402,211?

 A: 7, 307, 17377

Why are those the prime factors of the number 261,402,211?

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 261,402,211

261,402,211
Factor Arrows
737,343,173
Factor Arrows
75,334,739
Factor Arrows
30717,377

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:

7, 307, 17377

We can check our work by multiplying all of the prime factors together: 7 x 7 x 307 x 17,377 = 261,402,211

This can also be written as 72 x 3071 x 17,3771 = 261,402,211

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 261,402,211:


Ask a Question