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187/11
17/17
1. 11×17
4830/2
2415/3
805/5
161/161
1. 4830=2×3×5×161
44.100/2
22050/2
11025/3
3675/3
1225/5
245/5
49/7
7/7
1. 44.100=2×2×3×3×5×5×7×7