1, 3, 7, 13, 21, 39, 91, 273.
The GCF of 21, 27, and 39 is 3.
1092
3
1, 3, 7, 13, 21, 37, 39, 91, 111, 259, 273, 481, 777, 1443, 3367, 10101.
39 ÷ 21 = 1 with remainder 18 or 1.8571 times.
GCF(21, 39) = 3.
The GCF is 3.
21
819 ÷ 39 = 21
1, 3, 7, 13, 21, 39, 91, 273.
1, 3, 7, 21 1, 3, 13, 39
The GCF of 21, 27, and 39 is 3.
The GCF is 3.
60-39=21.
21 = 3 x 7 39 = 3 x 13 So 21 and 39 are not relatively prime as they are sharing a common factor: 3
The GCF of 21, 39, and 96 is 3.