Calculate the Greatest Common Factor or GCF of 867
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The instructions to find the GCF of 867 are the next:
1. Decompose all numbers into prime factors
| 867 | 3 |
| 289 | 17 |
| 17 | 17 |
| 1 |
2. Write all numbers as the product of its prime factors
| Prime factors of 867 | = | 3 . 172 |
3. Choose the common prime factors with the lowest exponent
Common prime factors: 3 , 17
Common prime factors with the lowest exponent: 31, 172
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 = 31. 172 = 867
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