Q: What are the prime factors of the number 168,948?

 A: 2, 3, 13, 19

Why are those the prime factors of the number 168,948?

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 168,948

168,948
Factor Arrows
284,474
Factor Arrows
242,237
Factor Arrows
314,079
Factor Arrows
34,693
Factor Arrows
13361
Factor Arrows
1919

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, 13, 19

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 13 x 19 x 19 = 168,948

This can also be written as 22 x 32 x 131 x 192 = 168,948

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


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