In the casino, 777 is often associated with slot machines. When three 7s line up on a 👄 slot machine's payline, it traditionally signifies a jackpot win. This combination is considered lucky and is often associated with big 👄 wins and good fortune in gambling.
777 is used on most slot machines in the United States to identify a jackpot. As it 👄 is considered a lucky number, banknotes with a serial number containing 777 tend to be valued by collectors and numismatists. 👄 The US Mint and the Bureau of Engraving and Printing sells uncirculated 777 $1 bills for this reason.