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Calculate the Greatest Common Factor or GCF of 275

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The instructions to find the GCF of 275 are the next:

1. Decompose all numbers into prime factors

2755
555
1111
1

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

Prime factors of 275=52 . 11

3. Choose the common prime factors with the lowest exponent

Common prime factors: 5 , 11

Common prime factors with the lowest exponent: 52, 111

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 = 52. 111 = 275


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