Q: What are the prime factors of the number 515,436,306?

 A: 2, 3, 7, 11, 467, 2389

Why are those the prime factors of the number 515,436,306?

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 515,436,306

515,436,306
Factor Arrows
2257,718,153
Factor Arrows
385,906,051
Factor Arrows
712,272,293
Factor Arrows
111,115,663
Factor Arrows
4672,389

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, 7, 11, 467, 2389

We can check our work by multiplying all of the prime factors together: 2 x 3 x 7 x 11 x 467 x 2,389 = 515,436,306

This can also be written as 21 x 31 x 71 x 111 x 4671 x 2,3891 = 515,436,306

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


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