Greatest Common Factor (GCF) of 81 and 2561

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To get the Greates Common Factor (GCF) of 81 and 2561 we need to factor each value first and then we choose all the copies of factors and multiply them:

81:   3333  
2561:       13197
GCF:         

The Greates Common Factor (GCF) is:   1

 

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