Q: What are the prime factors of the number 16,524,072?

 A: 2, 3, 19, 47, 257

Why are those the prime factors of the number 16,524,072?

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 16,524,072

16,524,072
Factor Arrows
28,262,036
Factor Arrows
24,131,018
Factor Arrows
22,065,509
Factor Arrows
3688,503
Factor Arrows
3229,501
Factor Arrows
1912,079
Factor Arrows
47257

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, 19, 47, 257

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 3 x 19 x 47 x 257 = 16,524,072

This can also be written as 23 x 32 x 191 x 471 x 2571 = 16,524,072

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


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