Q: What are the prime factors of the number 204,305,206?

 A: 2, 7, 431, 691

Why are those the prime factors of the number 204,305,206?

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 204,305,206

204,305,206
Factor Arrows
2102,152,603
Factor Arrows
714,593,229
Factor Arrows
72,084,747
Factor Arrows
7297,821
Factor Arrows
431691

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, 431, 691

We can check our work by multiplying all of the prime factors together: 2 x 7 x 7 x 7 x 431 x 691 = 204,305,206

This can also be written as 21 x 73 x 4311 x 6911 = 204,305,206

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


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