Calculate the Greatest Common Factor or GCF of 818
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The instructions to find the GCF of 818 are the next:
1. Decompose all numbers into prime factors
818 | 2 |
409 | 409 |
1 |
2. Write all numbers as the product of its prime factors
Prime factors of 818 | = | 2 . 409 |
3. Choose the common prime factors with the lowest exponent
Common prime factors: 2 , 409
Common prime factors with the lowest exponent: 21, 4091
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. 4091 = 818
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