Q: What are the prime factors of the number 111,042,405?

 A: 3, 5, 2467609

Why are those the prime factors of the number 111,042,405?

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 111,042,405

111,042,405
Factor Arrows
337,014,135
Factor Arrows
312,338,045
Factor Arrows
52,467,609

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, 5, 2467609

We can check our work by multiplying all of the prime factors together: 3 x 3 x 5 x 2,467,609 = 111,042,405

This can also be written as 32 x 51 x 2,467,6091 = 111,042,405

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


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