Q: What are the prime factors of the number 113,643,008?

 A: 2, 173, 1283

Why are those the prime factors of the number 113,643,008?

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 113,643,008

113,643,008
Factor Arrows
256,821,504
Factor Arrows
228,410,752
Factor Arrows
214,205,376
Factor Arrows
27,102,688
Factor Arrows
23,551,344
Factor Arrows
21,775,672
Factor Arrows
2887,836
Factor Arrows
2443,918
Factor Arrows
2221,959
Factor Arrows
1731,283

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, 173, 1283

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 2 x 2 x 2 x 173 x 1,283 = 113,643,008

This can also be written as 29 x 1731 x 1,2831 = 113,643,008

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


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