Calculate the Greatest Common Factor or GCF of 2688
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The instructions to find the GCF of 2688 are the next:
1. Decompose all numbers into prime factors
2688 | 2 |
1344 | 2 |
672 | 2 |
336 | 2 |
168 | 2 |
84 | 2 |
42 | 2 |
21 | 3 |
7 | 7 |
1 |
2. Write all numbers as the product of its prime factors
Prime factors of 2688 | = | 27 . 3 . 7 |
3. Choose the common prime factors with the lowest exponent
Common prime factors: 2 , 3 , 7
Common prime factors with the lowest exponent: 27, 31, 71
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 = 27. 31. 71 = 2688
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