Q: What are the prime factors of the number 605,161,512?

 A: 2, 3, 17, 494413

Why are those the prime factors of the number 605,161,512?

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 605,161,512

605,161,512
Factor Arrows
2302,580,756
Factor Arrows
2151,290,378
Factor Arrows
275,645,189
Factor Arrows
325,215,063
Factor Arrows
38,405,021
Factor Arrows
17494,413

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, 3, 17, 494413

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 3 x 17 x 494,413 = 605,161,512

This can also be written as 23 x 32 x 171 x 494,4131 = 605,161,512

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


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