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Calculate the Greatest Common Factor or GCF of 3621

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The instructions to find the GCF of 3621 are the next:

1. Decompose all numbers into prime factors

36213
120717
7171
1

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

Prime factors of 3621=3 . 17 . 71

3. Choose the common prime factors with the lowest exponent

Common prime factors: 3 , 17 , 71

Common prime factors with the lowest exponent: 31, 171, 711

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. 171. 711 = 3621


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