Q: What are the prime factors of the number 665,743,266?

 A: 2, 3, 1747, 7057

Why are those the prime factors of the number 665,743,266?

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 665,743,266

665,743,266
Factor Arrows
2332,871,633
Factor Arrows
3110,957,211
Factor Arrows
336,985,737
Factor Arrows
312,328,579
Factor Arrows
1,7477,057

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, 1747, 7057

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 3 x 1,747 x 7,057 = 665,743,266

This can also be written as 21 x 33 x 1,7471 x 7,0571 = 665,743,266

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 665,743,266:


Ask a Question