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Calculate the Greatest Common Factor or GCF of 2991

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The instructions to find the GCF of 2991 are the next:

1. Decompose all numbers into prime factors

29913
997997
1

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

Prime factors of 2991=3 . 997

3. Choose the common prime factors with the lowest exponent

Common prime factors: 3 , 997

Common prime factors with the lowest exponent: 31, 9971

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 = 31. 9971 = 2991


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