Q: What are the prime factors of the number 512,223,712?

 A: 2, 7, 11, 13, 15991

Why are those the prime factors of the number 512,223,712?

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 512,223,712

512,223,712
Factor Arrows
2256,111,856
Factor Arrows
2128,055,928
Factor Arrows
264,027,964
Factor Arrows
232,013,982
Factor Arrows
216,006,991
Factor Arrows
72,286,713
Factor Arrows
11207,883
Factor Arrows
1315,991

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, 7, 11, 13, 15991

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 7 x 11 x 13 x 15,991 = 512,223,712

This can also be written as 25 x 71 x 111 x 131 x 15,9911 = 512,223,712

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


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