Q: What are the prime factors of the number 200,043,305?

 A: 5, 7, 11, 19, 23, 29, 41

Why are those the prime factors of the number 200,043,305?

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 200,043,305

200,043,305
Factor Arrows
540,008,661
Factor Arrows
75,715,523
Factor Arrows
11519,593
Factor Arrows
1927,347
Factor Arrows
231,189
Factor Arrows
2941

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:

5, 7, 11, 19, 23, 29, 41

We can check our work by multiplying all of the prime factors together: 5 x 7 x 11 x 19 x 23 x 29 x 41 = 200,043,305

This can also be written as 51 x 71 x 111 x 191 x 231 x 291 x 411 = 200,043,305

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


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