Q: What are the prime factors of the number 16,642,048?

 A: 2, 17, 239

Why are those the prime factors of the number 16,642,048?

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 16,642,048

16,642,048
Factor Arrows
28,321,024
Factor Arrows
24,160,512
Factor Arrows
22,080,256
Factor Arrows
21,040,128
Factor Arrows
2520,064
Factor Arrows
2260,032
Factor Arrows
2130,016
Factor Arrows
265,008
Factor Arrows
232,504
Factor Arrows
216,252
Factor Arrows
28,126
Factor Arrows
24,063
Factor Arrows
17239

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, 17, 239

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 2 x 2 x 2 x 17 x 239 = 16,642,048

This can also be written as 212 x 171 x 2391 = 16,642,048

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


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