The greatest common factor of 21 and 54 is 3.
The greatest common factor is the highest number that divides exactly into two or more numbers.
factors of 21: 1, 3, 7, 21
factors of 54: 1, 2, 3, 6, 9, 18, 27, 54
The greatest common factor of 21 and 54 is 3.
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The greatest common factor of 54 , 90 = 18
The greatest common factor of 54 and 46 is 2.
The Greatest Common Factor (GCF) is: 1
The greatest common factor of 54 and 100 is 2.
The greatest common factor of 54 and 80 is 2.