Q: What are the prime factors of the number 100,211,121?

 A: 3, 277, 13399

Why are those the prime factors of the number 100,211,121?

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 100,211,121

100,211,121
Factor Arrows
333,403,707
Factor Arrows
311,134,569
Factor Arrows
33,711,523
Factor Arrows
27713,399

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, 277, 13399

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 277 x 13,399 = 100,211,121

This can also be written as 33 x 2771 x 13,3991 = 100,211,121

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


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