Q: What are the prime factors of the number 112,123,040?

 A: 2, 5, 83, 8443

Why are those the prime factors of the number 112,123,040?

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 112,123,040

112,123,040
Factor Arrows
256,061,520
Factor Arrows
228,030,760
Factor Arrows
214,015,380
Factor Arrows
27,007,690
Factor Arrows
23,503,845
Factor Arrows
5700,769
Factor Arrows
838,443

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, 5, 83, 8443

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 5 x 83 x 8,443 = 112,123,040

This can also be written as 25 x 51 x 831 x 8,4431 = 112,123,040

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


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