-86
1308
72, 108, 144, 180, 216, 252, 288, 324, 360!
9, 18, 27, 36, 45, 54, 63, 72, 81, 90, 99 . . .
{1, 53 and 72 lots of -1} ie 1*53*-1*-1*-1 ... *-1
72 x 72 = 5,184
24 and 3
6 + 12 = 18 6 * 12 = 72
-86
-73
1x72 2x36 3x24 4x18 6x12 8x9
78
1308
72, 144, and 216 is.
72, 108, 144, 180, 216, 252, 288, 324, 360!
60
9, 18, 27, 36, 45, 54, 63, 72, 81, 90, 99 . . .