Q: What are the prime factors of the number 331,100,112?

 A: 2, 3, 7, 985417

Why are those the prime factors of the number 331,100,112?

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 331,100,112

331,100,112
Factor Arrows
2165,550,056
Factor Arrows
282,775,028
Factor Arrows
241,387,514
Factor Arrows
220,693,757
Factor Arrows
36,897,919
Factor Arrows
7985,417

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, 7, 985417

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 7 x 985,417 = 331,100,112

This can also be written as 24 x 31 x 71 x 985,4171 = 331,100,112

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


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