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Calculate the Greatest Common Factor or GCF of 1621

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The instructions to find the GCF of 1621 are the next:

1. Decompose all numbers into prime factors

16211621
1

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

Prime factors of 1621=1621

3. Choose the common prime factors with the lowest exponent

Common prime factors: 1621

Common prime factors with the lowest exponent: 16211

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 = 16211 = 1621


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