68 May 2026
In restaurant slang, "68" is the opposite of "86" (which means to remove an item from the menu). A "68" means an item is back on the menu or available.
68 is a "happy number," meaning that if you take the sum of the squares of its digits and continue the process, you eventually reach 1. The Last Two-Digit "First" Number: In the digits of In restaurant slang, "68" is the opposite of
, 68 is the very last two-digit number to appear for the first time. The Last Two-Digit "First" Number: In the digits
On an infinite chessboard, there are 68 distinct squares that are exactly three knight's moves away from any starting square. 68 in Culture and Daily Life While 69
), a regular 68-sided polygon is considered constructible using only a compass and straightedge. 68 in Culture and Daily Life
While 69 often gets the attention, mathematicians and number theorists find 68 far more compelling for several reasons.