Calculate the Greatest Common Factor or GCF of 1391
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The instructions to find the GCF of 1391 are the next:
1. Decompose all numbers into prime factors
1391 | 13 |
107 | 107 |
1 |
2. Write all numbers as the product of its prime factors
Prime factors of 1391 | = | 13 . 107 |
3. Choose the common prime factors with the lowest exponent
Common prime factors: 13 , 107
Common prime factors with the lowest exponent: 131, 1071
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 = 131. 1071 = 1391
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