Q: What are the prime factors of the number 115,884?

 A: 2, 3, 29, 37

Why are those the prime factors of the number 115,884?

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 115,884

115,884
Factor Arrows
257,942
Factor Arrows
228,971
Factor Arrows
39,657
Factor Arrows
33,219
Factor Arrows
31,073
Factor Arrows
2937

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, 29, 37

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 3 x 29 x 37 = 115,884

This can also be written as 22 x 33 x 291 x 371 = 115,884

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


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