Q: What are the prime factors of the number 30,021,082?

 A: 2, 7, 13, 17, 31, 313

Why are those the prime factors of the number 30,021,082?

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 30,021,082

30,021,082
Factor Arrows
215,010,541
Factor Arrows
72,144,363
Factor Arrows
13164,951
Factor Arrows
179,703
Factor Arrows
31313

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, 7, 13, 17, 31, 313

We can check our work by multiplying all of the prime factors together: 2 x 7 x 13 x 17 x 31 x 313 = 30,021,082

This can also be written as 21 x 71 x 131 x 171 x 311 x 3131 = 30,021,082

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


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