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Calculate the Greatest Common Factor or GCF of 2489

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The instructions to find the GCF of 2489 are the next:

1. Decompose all numbers into prime factors

248919
131131
1

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

Prime factors of 2489=19 . 131

3. Choose the common prime factors with the lowest exponent

Common prime factors: 19 , 131

Common prime factors with the lowest exponent: 191, 1311

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 = 191. 1311 = 2489


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