Q: What are the prime factors of the number 16,819,792?

 A: 2, 11, 227, 421

Why are those the prime factors of the number 16,819,792?

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 16,819,792

16,819,792
Factor Arrows
28,409,896
Factor Arrows
24,204,948
Factor Arrows
22,102,474
Factor Arrows
21,051,237
Factor Arrows
1195,567
Factor Arrows
227421

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, 227, 421

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 11 x 227 x 421 = 16,819,792

This can also be written as 24 x 111 x 2271 x 4211 = 16,819,792

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


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