Q: What are the prime factors of the number 181,556,208?

 A: 2, 3, 420269

Why are those the prime factors of the number 181,556,208?

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 181,556,208

181,556,208
Factor Arrows
290,778,104
Factor Arrows
245,389,052
Factor Arrows
222,694,526
Factor Arrows
211,347,263
Factor Arrows
33,782,421
Factor Arrows
31,260,807
Factor Arrows
3420,269

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, 420269

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 3 x 3 x 420,269 = 181,556,208

This can also be written as 24 x 33 x 420,2691 = 181,556,208

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


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