Q: What are the prime factors of the number 266,223,136?

 A: 2, 19, 437867

Why are those the prime factors of the number 266,223,136?

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 266,223,136

266,223,136
Factor Arrows
2133,111,568
Factor Arrows
266,555,784
Factor Arrows
233,277,892
Factor Arrows
216,638,946
Factor Arrows
28,319,473
Factor Arrows
19437,867

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, 19, 437867

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 19 x 437,867 = 266,223,136

This can also be written as 25 x 191 x 437,8671 = 266,223,136

If you would like to know more, or need additional explanation, please review our prime factorization explanation.


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