Calculate the Greatest Common Factor or GCF of 446 and 669
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The instructions to find the GCF of 446 and 669 are the next:
1. Decompose all numbers into prime factors
| 446 | 2 |
| 223 | 223 |
| 1 |
| 669 | 3 |
| 223 | 223 |
| 1 |
2. Write all numbers as the product of its prime factors
| Prime factors of 446 | = | 2 . 223 |
| Prime factors of 669 | = | 3 . 223 |
3. Choose the common prime factors with the lowest exponent
Common prime factors: 223
Common prime factors with the lowest exponent: 2231
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 = 2231 = 223
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