Q: What are the prime factors of the number 131,174,703?

 A: 3, 11, 17, 41, 1901

Why are those the prime factors of the number 131,174,703?

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 131,174,703

131,174,703
Factor Arrows
343,724,901
Factor Arrows
314,574,967
Factor Arrows
111,324,997
Factor Arrows
1777,941
Factor Arrows
411,901

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, 17, 41, 1901

We can check our work by multiplying all of the prime factors together: 3 x 3 x 11 x 17 x 41 x 1,901 = 131,174,703

This can also be written as 32 x 111 x 171 x 411 x 1,9011 = 131,174,703

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


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