Q: What are the prime factors of the number 131,324,517?

 A: 3, 41, 97, 1223

Why are those the prime factors of the number 131,324,517?

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 131,324,517

131,324,517
Factor Arrows
343,774,839
Factor Arrows
314,591,613
Factor Arrows
34,863,871
Factor Arrows
41118,631
Factor Arrows
971,223

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, 41, 97, 1223

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 41 x 97 x 1,223 = 131,324,517

This can also be written as 33 x 411 x 971 x 1,2231 = 131,324,517

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


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