Calculate the Greatest Common Factor or GCF of 394
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The instructions to find the GCF of 394 are the next:
1. Decompose all numbers into prime factors
394 | 2 |
197 | 197 |
1 |
2. Write all numbers as the product of its prime factors
Prime factors of 394 | = | 2 . 197 |
3. Choose the common prime factors with the lowest exponent
Common prime factors: 2 , 197
Common prime factors with the lowest exponent: 21, 1971
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. 1971 = 394
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