Q: What are the prime factors of the number 208,593?

 A: 3, 7, 11, 43

Why are those the prime factors of the number 208,593?

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 208,593

208,593
Factor Arrows
369,531
Factor Arrows
323,177
Factor Arrows
73,311
Factor Arrows
7473
Factor Arrows
1143

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, 7, 11, 43

We can check our work by multiplying all of the prime factors together: 3 x 3 x 7 x 7 x 11 x 43 = 208,593

This can also be written as 32 x 72 x 111 x 431 = 208,593

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


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