Q: What are the prime factors of the number 111,442,305?

 A: 3, 5, 13, 41, 53, 263

Why are those the prime factors of the number 111,442,305?

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 111,442,305

111,442,305
Factor Arrows
337,147,435
Factor Arrows
57,429,487
Factor Arrows
13571,499
Factor Arrows
4113,939
Factor Arrows
53263

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, 13, 41, 53, 263

We can check our work by multiplying all of the prime factors together: 3 x 5 x 13 x 41 x 53 x 263 = 111,442,305

This can also be written as 31 x 51 x 131 x 411 x 531 x 2631 = 111,442,305

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


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