The two numbers are coprime, so their greatest common factor is 1.
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Factor out each term to get: 20 = 2² x 5 99 = 3 x 33 = 3² x 11 Since these terms don't have the common factor, the common factor is 1.
The greatest common factor between 2 numbers is the largest factor that they have in common. Therefore, the greatest common factor of 22 and 33 is 11.
greatest common factor of 33 and 50 = 1
The greatest common factor (GCF) of 27 and 33 is 3
Greatest common factor of 33 and 77 is 11.