Q: What are the prime factors of the number 11,091,672?

 A: 2, 3, 127, 1213

Why are those the prime factors of the number 11,091,672?

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 11,091,672

11,091,672
Factor Arrows
25,545,836
Factor Arrows
22,772,918
Factor Arrows
21,386,459
Factor Arrows
3462,153
Factor Arrows
3154,051
Factor Arrows
1271,213

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, 3, 127, 1213

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 3 x 127 x 1,213 = 11,091,672

This can also be written as 23 x 32 x 1271 x 1,2131 = 11,091,672

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


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