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Calculate the Greatest Common Factor or GCF of 1005

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The instructions to find the GCF of 1005 are the next:

1. Decompose all numbers into prime factors

10053
3355
6767
1

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

Prime factors of 1005=3 . 5 . 67

3. Choose the common prime factors with the lowest exponent

Common prime factors: 3 , 5 , 67

Common prime factors with the lowest exponent: 31, 51, 671

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. 51. 671 = 1005


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