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The Ultimate Trial of GCD & LCM

👉 Workshop Rules:
💎 [Crystal Cutting]: Greatest Common Divisor (GCD). Cut the crystal into the largest possible squares without leaving any waste!
⚙️ [Gear Sync]: Least Common Multiple (LCM). Predict how many seconds it takes for two gears to return to the starting point simultaneously!
🧮 [Short Division Extractor]: Calculate the GCD or LCM based on the short division diagram. (Trap: Do not mix up the positions for factors and multiples!)

⚠️ 12 levels in total. Predict the answer before verifying with animation! +20 pts for correct, -10 pts for wrong predictions.
Level 1
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Rank Name Highest Score ⏱️ Time Play Date
31 902Alysa 230 02:06 2026-03-31
32 帥哥良 230 02:18 2026-03-07
33 Wendy 230 03:52 2026-04-09
34 ;bk[dgksgjifp 230 05:07 2026-09-14
35 陳品豪 220 01:50 2026-04-16
36 90205 220 02:00 2026-05-07
37 亭妃 220 02:32 2026-04-15
38 張奕暘 220 02:36 2026-04-08
39 張祐豪 220 02:39 2026-04-27
40 瑩 220 05:35 2026-04-15