Q: What are the prime factors of the number 133,213,305?

 A: 3, 5, 41, 216607

Why are those the prime factors of the number 133,213,305?

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 133,213,305

133,213,305
Factor Arrows
344,404,435
Factor Arrows
58,880,887
Factor Arrows
41216,607

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:

3, 5, 41, 216607

We can check our work by multiplying all of the prime factors together: 3 x 5 x 41 x 216,607 = 133,213,305

This can also be written as 31 x 51 x 411 x 216,6071 = 133,213,305

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


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