Q: What are the prime factors of the number 515,356,536?

 A: 2, 3, 389, 55201

Why are those the prime factors of the number 515,356,536?

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 515,356,536

515,356,536
Factor Arrows
2257,678,268
Factor Arrows
2128,839,134
Factor Arrows
264,419,567
Factor Arrows
321,473,189
Factor Arrows
38955,201

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, 389, 55201

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 389 x 55,201 = 515,356,536

This can also be written as 23 x 31 x 3891 x 55,2011 = 515,356,536

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


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