回複：Can you tell me why "601"?

來源: 於 2009-01-08 19:14:36 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

13-6=7;
41-13=28=7*4
153-41=112=7*(4^2)
601-153=448=7*(4^3)
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