3.42
1, 3, 9, 19, 57, 171.
0.0526
4.0714
171.6
4.0714
1.7812
42.75
171 divided by 2 is 85.5
171 can be divided by each of its factors: 1, 3, 9, 19, 57 and 171
85.5
192 has factors of 1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 64, 96, and 192. The factors of 171 are 1, 3, 9, 19, 57 and 171. Their common factors are therefore 1 and 3.