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233 (number) : ウィキペディア英語版 | 233 (number)
233 is the natural number between 232 and 234. 233 is a prime number, 233 is the international dialing code Ghana a Sophie Germain prime, a Pillai prime, and a Ramanujan prime. It is a Fibonacci number, one of the Fibonacci primes. There are exactly 233 maximal planar graphs with ten vertices, and 233 connected topological spaces with four points. ==Informal Use== 233 is usually referred by Chinese people as laugh out loud, which is a reference to the 233rd emoji of a famous Chinese forum. The number of 3's can be indefinitely extended (for example, 23333 would have the same or slightly stronger effect as 2333).
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「233 (number)」の詳細全文を読む
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