Q: What are the prime factors of the number 65,371,131?

 A: 3, 7, 38431

Why are those the prime factors of the number 65,371,131?

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 65,371,131

65,371,131
Factor Arrows
321,790,377
Factor Arrows
37,263,459
Factor Arrows
32,421,153
Factor Arrows
3807,051
Factor Arrows
3269,017
Factor Arrows
738,431

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, 7, 38431

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 3 x 3 x 7 x 38,431 = 65,371,131

This can also be written as 35 x 71 x 38,4311 = 65,371,131

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


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