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The number 69,105 was used as an in-joke at the computer game manufacturer Infocom. It has occasionally appeared in later computer games as a tribute to Infocom. ==Significance of the number== The number 69,105 makes a number of appearances in Infocom games. Nick Montfort, in his book ''Twisty Little Passages'' (ISBN 0-262-13436-5), suggests that the number was chosen not only because 69 is the common name of a sexual position, but also because in its written form 69,105 falls naturally into two parts with an unusual relationship: * 69 in hexadecimal is 105 in decimal * 69 in decimal is 105 in octal This property was pointed out in a version of the Jargon File dating back at least to 1982. Commenting on the ("Exclusive to MIT-AI") usage of 69 as a generic "large quantity", Guy L. Steele said, "I don't know whether its origins are related to the obscene interpretation, but I do know that 69 decimal = 105 octal, and 69 hexadecimal = 105 decimal, which is a nice property."〔http://jargon-file.org/archive/jargon-1.0.5.dos.txt〕 The same natural relationship applies to 1,001; 2,002; 3,003; 4,004; 5,005; 6,006; 7,007; 64,100; 65,101; 66,102; 67,103; and 68,104. However, 69,105 is the highest number with this property with fewer than six digits. 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「69105 (number)」の詳細全文を読む スポンサード リンク
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