Q: What are the prime factors of the number 406,197?

 A: 3, 11, 373

Why are those the prime factors of the number 406,197?

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 406,197

406,197
Factor Arrows
3135,399
Factor Arrows
345,133
Factor Arrows
114,103
Factor Arrows
11373

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, 11, 373

We can check our work by multiplying all of the prime factors together: 3 x 3 x 11 x 11 x 373 = 406,197

This can also be written as 32 x 112 x 3731 = 406,197

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


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