Q: What are the prime factors of the number 231,144,330?

 A: 2, 3, 5, 383, 20117

Why are those the prime factors of the number 231,144,330?

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 231,144,330

231,144,330
Factor Arrows
2115,572,165
Factor Arrows
338,524,055
Factor Arrows
57,704,811
Factor Arrows
38320,117

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, 3, 5, 383, 20117

We can check our work by multiplying all of the prime factors together: 2 x 3 x 5 x 383 x 20,117 = 231,144,330

This can also be written as 21 x 31 x 51 x 3831 x 20,1171 = 231,144,330

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


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