Q: What are the prime factors of the number 166,634,556?

 A: 2, 3, 11, 521, 2423

Why are those the prime factors of the number 166,634,556?

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 166,634,556

166,634,556
Factor Arrows
283,317,278
Factor Arrows
241,658,639
Factor Arrows
313,886,213
Factor Arrows
111,262,383
Factor Arrows
5212,423

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, 11, 521, 2423

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 11 x 521 x 2,423 = 166,634,556

This can also be written as 22 x 31 x 111 x 5211 x 2,4231 = 166,634,556

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


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