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・ 22nd Guldbagge Awards
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・ 22nd Independent Spirit Awards
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・ 22nd Infantry Division (France)
・ 22nd Infantry Division (Philippines)
・ 22nd Infantry Division Cacciatori delle Alpi
・ 22nd Infantry Regiment (United States)
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・ 226th Mixed Brigade (Spain)
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227 (number)
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・ 227th (Sudbury-Manitoulin-Algoma) Battalion (Men o' the North), CEF
・ 227th Coastal Division (Italy)
・ 227th Infantry Brigade (United Kingdom)
・ 227th Infantry Division (Wehrmacht)
・ 227th Mixed Brigade


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227 (number) : ウィキペディア英語版
227 (number)

227 is the natural number between 226 and 228. It is also a prime number.
==In mathematics==
227 is a twin prime and the start of a prime triplet (with 229 and 233). It is a safe prime, as dividing it by two and rounding down produces the Sophie Germain prime 113. It is also a regular prime, a Pillai prime, a Stern prime, and a Ramanujan prime.
The 227th harmonic number is the first to exceed six. There are 227 different connected graphs with eight edges, and 227 independent sets in a 3 × 4 grid graph.

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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