Q: What are the prime factors of the number 161,335,112?

 A: 2, 419, 48131

Why are those the prime factors of the number 161,335,112?

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 161,335,112

161,335,112
Factor Arrows
280,667,556
Factor Arrows
240,333,778
Factor Arrows
220,166,889
Factor Arrows
41948,131

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, 419, 48131

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 419 x 48,131 = 161,335,112

This can also be written as 23 x 4191 x 48,1311 = 161,335,112

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


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