Q: What are the prime factors of the number 257,096?

 A: 2, 7, 4591

Why are those the prime factors of the number 257,096?

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 257,096

257,096
Factor Arrows
2128,548
Factor Arrows
264,274
Factor Arrows
232,137
Factor Arrows
74,591

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, 7, 4591

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 7 x 4,591 = 257,096

This can also be written as 23 x 71 x 4,5911 = 257,096

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


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