Q: What are the prime factors of the number 518,616,343?

 A: 7, 19, 79579

Why are those the prime factors of the number 518,616,343?

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 518,616,343

518,616,343
Factor Arrows
774,088,049
Factor Arrows
710,584,007
Factor Arrows
71,512,001
Factor Arrows
1979,579

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:

7, 19, 79579

We can check our work by multiplying all of the prime factors together: 7 x 7 x 7 x 19 x 79,579 = 518,616,343

This can also be written as 73 x 191 x 79,5791 = 518,616,343

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


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