Q: What are the prime factors of the number 100,231,196?

 A: 2, 13, 67, 2213

Why are those the prime factors of the number 100,231,196?

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 100,231,196

100,231,196
Factor Arrows
250,115,598
Factor Arrows
225,057,799
Factor Arrows
131,927,523
Factor Arrows
13148,271
Factor Arrows
672,213

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, 13, 67, 2213

We can check our work by multiplying all of the prime factors together: 2 x 2 x 13 x 13 x 67 x 2,213 = 100,231,196

This can also be written as 22 x 132 x 671 x 2,2131 = 100,231,196

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


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