Q: What are the prime factors of the number 331,040,224?

 A: 2, 137, 75511

Why are those the prime factors of the number 331,040,224?

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 331,040,224

331,040,224
Factor Arrows
2165,520,112
Factor Arrows
282,760,056
Factor Arrows
241,380,028
Factor Arrows
220,690,014
Factor Arrows
210,345,007
Factor Arrows
13775,511

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, 137, 75511

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 137 x 75,511 = 331,040,224

This can also be written as 25 x 1371 x 75,5111 = 331,040,224

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


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