Q: What are the prime factors of the number 515,600,215?

 A: 5, 13, 31, 41, 79

Why are those the prime factors of the number 515,600,215?

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 515,600,215

515,600,215
Factor Arrows
5103,120,043
Factor Arrows
137,932,311
Factor Arrows
31255,881
Factor Arrows
416,241
Factor Arrows
7979

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, 13, 31, 41, 79

We can check our work by multiplying all of the prime factors together: 5 x 13 x 31 x 41 x 79 x 79 = 515,600,215

This can also be written as 51 x 131 x 311 x 411 x 792 = 515,600,215

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


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