Q: What are the prime factors of the number 100,384?

 A: 2, 3137

Why are those the prime factors of the number 100,384?

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 100,384

100,384
Factor Arrows
250,192
Factor Arrows
225,096
Factor Arrows
212,548
Factor Arrows
26,274
Factor Arrows
23,137

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, 3137

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 3,137 = 100,384

This can also be written as 25 x 3,1371 = 100,384

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


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