Q: What are the prime factors of the number 1,666,176?

 A: 2, 3, 4339

Why are those the prime factors of the number 1,666,176?

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 1,666,176

1,666,176
Factor Arrows
2833,088
Factor Arrows
2416,544
Factor Arrows
2208,272
Factor Arrows
2104,136
Factor Arrows
252,068
Factor Arrows
226,034
Factor Arrows
213,017
Factor Arrows
34,339

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, 4339

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 3 x 4,339 = 1,666,176

This can also be written as 27 x 31 x 4,3391 = 1,666,176

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


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