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Calculate the Greatest Common Factor or GCF of 802

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The instructions to find the GCF of 802 are the next:

1. Decompose all numbers into prime factors

8022
401401
1

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

Prime factors of 802=2 . 401

3. Choose the common prime factors with the lowest exponent

Common prime factors: 2 , 401

Common prime factors with the lowest exponent: 21, 4011

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 = 21. 4011 = 802


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