Q: What are the prime factors of the number 103,938?

 A: 2, 3, 17, 1019

Why are those the prime factors of the number 103,938?

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 103,938

103,938
Factor Arrows
251,969
Factor Arrows
317,323
Factor Arrows
171,019

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, 17, 1019

We can check our work by multiplying all of the prime factors together: 2 x 3 x 17 x 1,019 = 103,938

This can also be written as 21 x 31 x 171 x 1,0191 = 103,938

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


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