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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
51 芮安 200 06:09 2026-09-26
52 李沛芸 200 07:11 2026-04-01
53 70320朱朱 180 03:25 2026-09-21
54 鄭 180 05:17 2026-04-15
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56 昊恩 160 05:10 2026-04-15
57 小靜 160 07:29 2026-04-04
58 21 150 05:07 2026-04-15
59 邱 130 04:58 2026-04-15
60 吳季霖 130 10:39 2026-04-01