Q: What are the prime factors of the number 113,135,512?

 A: 2, 7, 257, 1123

Why are those the prime factors of the number 113,135,512?

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 113,135,512

113,135,512
Factor Arrows
256,567,756
Factor Arrows
228,283,878
Factor Arrows
214,141,939
Factor Arrows
72,020,277
Factor Arrows
7288,611
Factor Arrows
2571,123

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, 257, 1123

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 7 x 7 x 257 x 1,123 = 113,135,512

This can also be written as 23 x 72 x 2571 x 1,1231 = 113,135,512

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


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