Q: What are the prime factors of the number 112,415,520?

 A: 2, 3, 5, 7, 33457

Why are those the prime factors of the number 112,415,520?

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 112,415,520

112,415,520
Factor Arrows
256,207,760
Factor Arrows
228,103,880
Factor Arrows
214,051,940
Factor Arrows
27,025,970
Factor Arrows
23,512,985
Factor Arrows
31,170,995
Factor Arrows
5234,199
Factor Arrows
733,457

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, 3, 5, 7, 33457

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 3 x 5 x 7 x 33,457 = 112,415,520

This can also be written as 25 x 31 x 51 x 71 x 33,4571 = 112,415,520

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


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