Q: What are the prime factors of the number 100,192?

 A: 2, 31, 101

Why are those the prime factors of the number 100,192?

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 100,192

100,192
Factor Arrows
250,096
Factor Arrows
225,048
Factor Arrows
212,524
Factor Arrows
26,262
Factor Arrows
23,131
Factor Arrows
31101

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, 31, 101

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 31 x 101 = 100,192

This can also be written as 25 x 311 x 1011 = 100,192

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


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