Q: What are the prime factors of the number 133,226,016?

 A: 2, 3, 7, 11, 67, 269

Why are those the prime factors of the number 133,226,016?

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 133,226,016

133,226,016
Factor Arrows
266,613,008
Factor Arrows
233,306,504
Factor Arrows
216,653,252
Factor Arrows
28,326,626
Factor Arrows
24,163,313
Factor Arrows
31,387,771
Factor Arrows
7198,253
Factor Arrows
1118,023
Factor Arrows
67269

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, 11, 67, 269

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 3 x 7 x 11 x 67 x 269 = 133,226,016

This can also be written as 25 x 31 x 71 x 111 x 671 x 2691 = 133,226,016

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


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