Calculate the Greatest Common Factor or GCF of 1578
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The instructions to find the GCF of 1578 are the next:
1. Decompose all numbers into prime factors
| 1578 | 2 | 
| 789 | 3 | 
| 263 | 263 | 
| 1 | 
2. Write all numbers as the product of its prime factors
| Prime factors of 1578 | = | 2 . 3 . 263 | 
3. Choose the common prime factors with the lowest exponent
Common prime factors: 2 , 3 , 263
Common prime factors with the lowest exponent: 21, 31, 2631
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 = 21. 31. 2631 = 1578
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