Calculate the Greatest Common Factor or GCF of 1781
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The instructions to find the GCF of 1781 are the next:
1. Decompose all numbers into prime factors
1781 | 13 |
137 | 137 |
1 |
2. Write all numbers as the product of its prime factors
Prime factors of 1781 | = | 13 . 137 |
3. Choose the common prime factors with the lowest exponent
Common prime factors: 13 , 137
Common prime factors with the lowest exponent: 131, 1371
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 = 131. 1371 = 1781
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