Six Seven (6 × 7)

Six Seven is a beloved baseball meme that plays on the mathematical fact that 6 × 7 = 42, which happens to be Jackie Robinson's iconic number, the only number retired across all of Major League Baseball.

The Joke Explained

When someone asks a baseball fan "What's six times seven?" the expected mathematical answer is 42. But a true baseball fan might answer "Jackie Robinson" because the number 42 is so deeply associated with the legendary player who broke baseball's color barrier.

Why 42 Matters

Jackie Robinson wore #42 for the Brooklyn Dodgers when he became the first Black player in Major League Baseball in 1947. In 1997, MLB retired #42 across all teams, the first time a number was retired league-wide.

The Meme Culture

This joke has become a way for baseball fans to:

• Identify fellow die-hard fans
• Pay tribute to Jackie Robinson's legacy
• Show that baseball knowledge transcends simple math
• Bond over shared baseball culture

Jackie Robinson Day

Every April 15th (the anniversary of Robinson's MLB debut), all players, coaches, and umpires wear #42 in his honor, the only day the number appears on the field.

Other Fun Baseball Math

• 3-6-3: A double play from first baseman to shortstop to first baseman
• 6-4-3: The classic double play combination
• 4+1: A grand slam (4 RBIs from one swing)