Q: What are the prime factors of the number 117,876?

 A: 2, 3, 11, 19, 47

Why are those the prime factors of the number 117,876?

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 117,876

117,876
Factor Arrows
258,938
Factor Arrows
229,469
Factor Arrows
39,823
Factor Arrows
11893
Factor Arrows
1947

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, 11, 19, 47

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 11 x 19 x 47 = 117,876

This can also be written as 22 x 31 x 111 x 191 x 471 = 117,876

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


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