Calculate the Greatest Common Factor or GCF of 1387
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The instructions to find the GCF of 1387 are the next:
1. Decompose all numbers into prime factors
| 1387 | 19 |
| 73 | 73 |
| 1 |
2. Write all numbers as the product of its prime factors
| Prime factors of 1387 | = | 19 . 73 |
3. Choose the common prime factors with the lowest exponent
Common prime factors: 19 , 73
Common prime factors with the lowest exponent: 191, 731
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 = 191. 731 = 1387
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