Q: What are the prime factors of the number 111,100,011?

 A: 3, 11, 19, 37, 4789

Why are those the prime factors of the number 111,100,011?

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 111,100,011

111,100,011
Factor Arrows
337,033,337
Factor Arrows
113,366,667
Factor Arrows
19177,193
Factor Arrows
374,789

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, 11, 19, 37, 4789

We can check our work by multiplying all of the prime factors together: 3 x 11 x 19 x 37 x 4,789 = 111,100,011

This can also be written as 31 x 111 x 191 x 371 x 4,7891 = 111,100,011

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


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