Factor comun 1 bis
35 • 567 - 25 • 567 =
15 • 789 - 5 • 789 =
76 • 42 - 32 • 76 =
85 • 117 - 75 • 117 =
33 • 42 - 23 • 42 =
37 • 245 - 245 • 36 =
302 • 230 - 302 • 130=
88 • 125 - 25 • 88 =
79 • 21 - 11 • 79 =
193 • 65 + 193 • 35 =
545 • 112 - 12 • 545 =
23 • 19 - 23 • 9 =
23 • 98 + 2 • 23 =
999 • 81 + 81 =
37 • 245 - 245 • 36 =
273 • 90 + 10 • 273 =
96 • 42 + 42 • 4 =
17 • 8 + 17 • 2 =
23 • 55 + 55 • 17 + 60 • 55 =
   6 + 12 + 18 + 24 + 30 =

= 6 + 6•2 + 6•3 + 6•4 + 6•5 =
99 • 99 + 99 =
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