Q: What are the prime factors of the number 199,906?

 A: 2, 7, 109, 131

Why are those the prime factors of the number 199,906?

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 199,906

199,906
Factor Arrows
299,953
Factor Arrows
714,279
Factor Arrows
109131

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, 109, 131

We can check our work by multiplying all of the prime factors together: 2 x 7 x 109 x 131 = 199,906

This can also be written as 21 x 71 x 1091 x 1311 = 199,906

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


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