Q: What are the prime factors of the number 118,275?

 A: 3, 5, 19, 83

Why are those the prime factors of the number 118,275?

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 118,275

118,275
Factor Arrows
339,425
Factor Arrows
57,885
Factor Arrows
51,577
Factor Arrows
1983

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:

3, 5, 19, 83

We can check our work by multiplying all of the prime factors together: 3 x 5 x 5 x 19 x 83 = 118,275

This can also be written as 31 x 52 x 191 x 831 = 118,275

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


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