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Calculate the Greatest Common Factor or GCF of 1216

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The instructions to find the GCF of 1216 are the next:

1. Decompose all numbers into prime factors

12162
6082
3042
1522
762
382
1919
1

2. Write all numbers as the product of its prime factors

Prime factors of 1216=26 . 19

3. Choose the common prime factors with the lowest exponent

Common prime factors: 2 , 19

Common prime factors with the lowest exponent: 26, 191

4. Calculate the Greatest Common Factor or GCF

Remember, to find the GCF of several numbers you must multiply the common prime factors with the lowest exponent.

GCF = 26. 191 = 1216


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