Calculate the Greatest Common Factor or GCF of 999
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The instructions to find the GCF of 999 are the next:
1. Decompose all numbers into prime factors
| 999 | 3 |
| 333 | 3 |
| 111 | 3 |
| 37 | 37 |
| 1 |
2. Write all numbers as the product of its prime factors
| Prime factors of 999 | = | 33 . 37 |
3. Choose the common prime factors with the lowest exponent
Common prime factors: 3 , 37
Common prime factors with the lowest exponent: 33, 371
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 = 33. 371 = 999
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