60, 120, 180 and so on.
-177
-42
21
2,6
-11
141
168
-16
Assuming question should be ... What multiplies itself 3 times for 1728 twelve 12³ = 12 x 12 x 12 = 144 x 12 = 288 + 1,440 = 1,728
4 and 11.
-5 and -10
3, 6, 9, 12, 15, 18, 21, 24, 278, 16, 24, 32