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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
41 鍾忻妍 210 02:29 2026-04-15
42 Sheeep 210 03:00 2026-04-15
43 林宸睿 210 03:34 2026-04-15
44 李奕葳 210 03:36 2026-04-07
45 90222 210 04:00 2026-04-09
46 林星辰 210 08:17 2026-04-15
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48 70325 200 02:59 2026-09-03
49 70702 200 03:35 2026-04-15
50 陳宣齊 200 04:07 2026-04-10