Q: What are the prime factors of the number 16,647,411?

 A: 3, 11, 641, 787

Why are those the prime factors of the number 16,647,411?

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 16,647,411

16,647,411
Factor Arrows
35,549,137
Factor Arrows
11504,467
Factor Arrows
641787

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:

3, 11, 641, 787

We can check our work by multiplying all of the prime factors together: 3 x 11 x 641 x 787 = 16,647,411

This can also be written as 31 x 111 x 6411 x 7871 = 16,647,411

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


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