Q: What are the prime factors of the number 16,129,536?

 A: 2, 3, 10501

Why are those the prime factors of the number 16,129,536?

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 16,129,536

16,129,536
Factor Arrows
28,064,768
Factor Arrows
24,032,384
Factor Arrows
22,016,192
Factor Arrows
21,008,096
Factor Arrows
2504,048
Factor Arrows
2252,024
Factor Arrows
2126,012
Factor Arrows
263,006
Factor Arrows
231,503
Factor Arrows
310,501

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, 10501

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 2 x 2 x 2 x 3 x 10,501 = 16,129,536

This can also be written as 29 x 31 x 10,5011 = 16,129,536

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


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