123456789

123, 456, 789

1+2+3 = 6
4+5+6 = 15
7+8+9 = 24

1*2*3 = 6
4*5*6 = 120
7*8*9 = 504

6/6 = 1
120/15 = 8
504/24 = 21

1*8*21 = 168

360/168 = 2.142857143
28/2.142857143 = 13.06666667, -13, inv = 15
13+15 = 28

168/8 = 21
168/7 = 24
168/6 = 28
168/4 = 42
168/3 = 56
168/2 = 84

168/6 = 28
168*6 = 1008

360 * 28 = 10080
10080/1008 = 10

21+24+28+42+56+84 = 255
255/6 = 42.5
1/42.5 = 0.023529411
28/0.023529411 = 1190
360/0.023529411 = 15300

1190/168 = 7.08333333, -7, inv = 12
15300/168 = 91.07142857, -91, inv = 14
12 * 14 = 168
91/7 = 13
168/13 = 12.92307692, 13-x, inv = 13

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