Q: What are the prime factors of the number 13,512,512?

 A: 2, 13, 109, 149

Why are those the prime factors of the number 13,512,512?

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 13,512,512

13,512,512
Factor Arrows
26,756,256
Factor Arrows
23,378,128
Factor Arrows
21,689,064
Factor Arrows
2844,532
Factor Arrows
2422,266
Factor Arrows
2211,133
Factor Arrows
1316,241
Factor Arrows
109149

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, 13, 109, 149

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 13 x 109 x 149 = 13,512,512

This can also be written as 26 x 131 x 1091 x 1491 = 13,512,512

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


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