Q: What are the prime factors of the number 16,614,144?

 A: 2, 3, 7211

Why are those the prime factors of the number 16,614,144?

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 16,614,144

16,614,144
Factor Arrows
28,307,072
Factor Arrows
24,153,536
Factor Arrows
22,076,768
Factor Arrows
21,038,384
Factor Arrows
2519,192
Factor Arrows
2259,596
Factor Arrows
2129,798
Factor Arrows
264,899
Factor Arrows
321,633
Factor Arrows
37,211

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, 7211

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 3 x 3 x 7,211 = 16,614,144

This can also be written as 28 x 32 x 7,2111 = 16,614,144

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


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