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), 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. ), a regular 68-sided polygon is considered constructible

On an infinite chessboard, there are 68 distinct squares that are exactly three knight's moves away from any starting square. ), a regular 68-sided polygon is considered constructible

, 68 is the very last two-digit number to appear for the first time. ), a regular 68-sided polygon is considered constructible