Q: What are the prime factors of the number 281,121?

 A: 3, 83, 1129

Why are those the prime factors of the number 281,121?

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 281,121

281,121
Factor Arrows
393,707
Factor Arrows
831,129

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, 83, 1129

We can check our work by multiplying all of the prime factors together: 3 x 83 x 1,129 = 281,121

This can also be written as 31 x 831 x 1,1291 = 281,121

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


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