Calculate the Greatest Common Factor or GCF of 836
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The instructions to find the GCF of 836 are the next:
1. Decompose all numbers into prime factors
836 | 2 |
418 | 2 |
209 | 11 |
19 | 19 |
1 |
2. Write all numbers as the product of its prime factors
Prime factors of 836 | = | 22 . 11 . 19 |
3. Choose the common prime factors with the lowest exponent
Common prime factors: 2 , 11 , 19
Common prime factors with the lowest exponent: 22, 111, 191
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 = 22. 111. 191 = 836
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