Q: What are the prime factors of the number 178,281?

 A: 3, 31, 71

Why are those the prime factors of the number 178,281?

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 178,281

178,281
Factor Arrows
359,427
Factor Arrows
319,809
Factor Arrows
36,603
Factor Arrows
32,201
Factor Arrows
3171

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, 31, 71

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 3 x 31 x 71 = 178,281

This can also be written as 34 x 311 x 711 = 178,281

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


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