Q: What are the prime factors of the number 13,668,512?

 A: 2, 11, 13, 29, 103

Why are those the prime factors of the number 13,668,512?

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 13,668,512

13,668,512
Factor Arrows
26,834,256
Factor Arrows
23,417,128
Factor Arrows
21,708,564
Factor Arrows
2854,282
Factor Arrows
2427,141
Factor Arrows
1138,831
Factor Arrows
132,987
Factor Arrows
29103

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, 11, 13, 29, 103

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 11 x 13 x 29 x 103 = 13,668,512

This can also be written as 25 x 111 x 131 x 291 x 1031 = 13,668,512

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


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