Q: What are the prime factors of the number 121,066,048?

 A: 2, 1891657

Why are those the prime factors of the number 121,066,048?

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 121,066,048

121,066,048
Factor Arrows
260,533,024
Factor Arrows
230,266,512
Factor Arrows
215,133,256
Factor Arrows
27,566,628
Factor Arrows
23,783,314
Factor Arrows
21,891,657

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, 1891657

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 1,891,657 = 121,066,048

This can also be written as 26 x 1,891,6571 = 121,066,048

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


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