Q: What are the prime factors of the number 121,327,811?

 A: 11, 43, 179, 1433

Why are those the prime factors of the number 121,327,811?

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 121,327,811

121,327,811
Factor Arrows
1111,029,801
Factor Arrows
43256,507
Factor Arrows
1791,433

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:

11, 43, 179, 1433

We can check our work by multiplying all of the prime factors together: 11 x 43 x 179 x 1,433 = 121,327,811

This can also be written as 111 x 431 x 1791 x 1,4331 = 121,327,811

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


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