關於數字推理的問題 - 推理遊戲
By Ursula
at 2008-10-08T17:04
at 2008-10-08T17:04
Table of Contents
這篇文章po在這邊不知道合不合適@@
若不合適 請告知一下 小弟馬上刪除~
問題 :
請找出下面數列的規律
1, 2, 6, 42, 1806, ???
這個問題 似乎沒有唯一解 我朋友找到的答案是1807
可是我推出來的答案是1811
-
我的想法是
以1為起始 離他最近的質數是2 所以第二個是 1*2 = 2
離2最近的質數是3 所以第三個是 2*3 = 6
離6最近的質數是7 所以第四個是 6*7 = 42
離42最近的質數是43 所以第五個是 42*43 = 1806
離1806最近的質數是1811 所以第六個是 1806*1811 = 3270666
不知道我的想法有沒有錯@@
--
我的相簿 內無閃光 + 真相 請放心食用 :)
http://www.wretch.cc/album/flush
--
若不合適 請告知一下 小弟馬上刪除~
問題 :
請找出下面數列的規律
1, 2, 6, 42, 1806, ???
這個問題 似乎沒有唯一解 我朋友找到的答案是1807
可是我推出來的答案是1811
-
我的想法是
以1為起始 離他最近的質數是2 所以第二個是 1*2 = 2
離2最近的質數是3 所以第三個是 2*3 = 6
離6最近的質數是7 所以第四個是 6*7 = 42
離42最近的質數是43 所以第五個是 42*43 = 1806
離1806最近的質數是1811 所以第六個是 1806*1811 = 3270666
不知道我的想法有沒有錯@@
--
我的相簿 內無閃光 + 真相 請放心食用 :)
http://www.wretch.cc/album/flush
--
Tags:
推理遊戲
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