Q: What are the prime factors of the number 144,131,330?

 A: 2, 5, 7, 97, 21227

Why are those the prime factors of the number 144,131,330?

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 144,131,330

144,131,330
Factor Arrows
272,065,665
Factor Arrows
514,413,133
Factor Arrows
72,059,019
Factor Arrows
9721,227

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:

2, 5, 7, 97, 21227

We can check our work by multiplying all of the prime factors together: 2 x 5 x 7 x 97 x 21,227 = 144,131,330

This can also be written as 21 x 51 x 71 x 971 x 21,2271 = 144,131,330

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


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