Calculate the Greatest Common Factor or GCF of 1393
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The instructions to find the GCF of 1393 are the next:
1. Decompose all numbers into prime factors
1393 | 7 |
199 | 199 |
1 |
2. Write all numbers as the product of its prime factors
Prime factors of 1393 | = | 7 . 199 |
3. Choose the common prime factors with the lowest exponent
Common prime factors: 7 , 199
Common prime factors with the lowest exponent: 71, 1991
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 = 71. 1991 = 1393
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