Q: What are the prime factors of the number 131,321,029?

 A: 7, 37, 113, 641

Why are those the prime factors of the number 131,321,029?

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 131,321,029

131,321,029
Factor Arrows
718,760,147
Factor Arrows
72,680,021
Factor Arrows
3772,433
Factor Arrows
113641

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:

7, 37, 113, 641

We can check our work by multiplying all of the prime factors together: 7 x 7 x 37 x 113 x 641 = 131,321,029

This can also be written as 72 x 371 x 1131 x 6411 = 131,321,029

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


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