Q: What are the prime factors of the number 331,020,013?

 A: 47, 1811, 3889

Why are those the prime factors of the number 331,020,013?

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 331,020,013

331,020,013
Factor Arrows
477,042,979
Factor Arrows
1,8113,889

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:

47, 1811, 3889

We can check our work by multiplying all of the prime factors together: 47 x 1,811 x 3,889 = 331,020,013

This can also be written as 471 x 1,8111 x 3,8891 = 331,020,013

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


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