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Calculate the Greatest Common Factor or GCF of 1421

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The instructions to find the GCF of 1421 are the next:

1. Decompose all numbers into prime factors

14217
2037
2929
1

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

Prime factors of 1421=72 . 29

3. Choose the common prime factors with the lowest exponent

Common prime factors: 7 , 29

Common prime factors with the lowest exponent: 72, 291

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 = 72. 291 = 1421


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