Q: What are the prime factors of the number 11,123,411?

 A: 13, 61, 83

Why are those the prime factors of the number 11,123,411?

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 11,123,411

11,123,411
Factor Arrows
13855,647
Factor Arrows
1365,819
Factor Arrows
135,063
Factor Arrows
6183

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:

13, 61, 83

We can check our work by multiplying all of the prime factors together: 13 x 13 x 13 x 61 x 83 = 11,123,411

This can also be written as 133 x 611 x 831 = 11,123,411

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


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