Q: What are the prime factors of the number 113,141,120?

 A: 2, 5, 17, 10399

Why are those the prime factors of the number 113,141,120?

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 113,141,120

113,141,120
Factor Arrows
256,570,560
Factor Arrows
228,285,280
Factor Arrows
214,142,640
Factor Arrows
27,071,320
Factor Arrows
23,535,660
Factor Arrows
21,767,830
Factor Arrows
2883,915
Factor Arrows
5176,783
Factor Arrows
1710,399

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, 17, 10399

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 5 x 17 x 10,399 = 113,141,120

This can also be written as 27 x 51 x 171 x 10,3991 = 113,141,120

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


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