Q: What are the prime factors of the number 115,534,144?

 A: 2, 11, 29, 5659

Why are those the prime factors of the number 115,534,144?

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 115,534,144

115,534,144
Factor Arrows
257,767,072
Factor Arrows
228,883,536
Factor Arrows
214,441,768
Factor Arrows
27,220,884
Factor Arrows
23,610,442
Factor Arrows
21,805,221
Factor Arrows
11164,111
Factor Arrows
295,659

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, 11, 29, 5659

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 11 x 29 x 5,659 = 115,534,144

This can also be written as 26 x 111 x 291 x 5,6591 = 115,534,144

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


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