Q: What are the prime factors of the number 194,128?

 A: 2, 11, 1103

Why are those the prime factors of the number 194,128?

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 194,128

194,128
Factor Arrows
297,064
Factor Arrows
248,532
Factor Arrows
224,266
Factor Arrows
212,133
Factor Arrows
111,103

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, 11, 1103

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 11 x 1,103 = 194,128

This can also be written as 24 x 111 x 1,1031 = 194,128

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


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