Q: What are the prime factors of the number 200,431,660?

 A: 2, 5, 11, 13, 23, 277

Why are those the prime factors of the number 200,431,660?

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 200,431,660

200,431,660
Factor Arrows
2100,215,830
Factor Arrows
250,107,915
Factor Arrows
510,021,583
Factor Arrows
11911,053
Factor Arrows
1182,823
Factor Arrows
136,371
Factor Arrows
23277

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, 5, 11, 13, 23, 277

We can check our work by multiplying all of the prime factors together: 2 x 2 x 5 x 11 x 11 x 13 x 23 x 277 = 200,431,660

This can also be written as 22 x 51 x 112 x 131 x 231 x 2771 = 200,431,660

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


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