Q: What are the prime factors of the number 100,838,052?

 A: 2, 3, 7, 400151

Why are those the prime factors of the number 100,838,052?

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 100,838,052

100,838,052
Factor Arrows
250,419,026
Factor Arrows
225,209,513
Factor Arrows
38,403,171
Factor Arrows
32,801,057
Factor Arrows
7400,151

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, 7, 400151

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 7 x 400,151 = 100,838,052

This can also be written as 22 x 32 x 71 x 400,1511 = 100,838,052

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


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