Q: What are the prime factors of the number 204,613,318?

 A: 2, 7, 13, 19, 79, 107

Why are those the prime factors of the number 204,613,318?

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 204,613,318

204,613,318
Factor Arrows
2102,306,659
Factor Arrows
714,615,237
Factor Arrows
72,087,891
Factor Arrows
13160,607
Factor Arrows
198,453
Factor Arrows
79107

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, 13, 19, 79, 107

We can check our work by multiplying all of the prime factors together: 2 x 7 x 7 x 13 x 19 x 79 x 107 = 204,613,318

This can also be written as 21 x 72 x 131 x 191 x 791 x 1071 = 204,613,318

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


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