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Calculate the Greatest Common Factor or GCF of 2540

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The instructions to find the GCF of 2540 are the next:

1. Decompose all numbers into prime factors

25402
12702
6355
127127
1

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

Prime factors of 2540=22 . 5 . 127

3. Choose the common prime factors with the lowest exponent

Common prime factors: 2 , 5 , 127

Common prime factors with the lowest exponent: 22, 51, 1271

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 = 22. 51. 1271 = 2540


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