The Number 121: Properties and MeaningsPrime Factors of 121=11x11.
121 is a Centered Octagonal Number.
121 is a Centered 12-gonal Number.
121 is a Centered 20-gonal Number.
121 is a Centered 40-gonal Number.
STS-121 was a Space Shuttle Discovery mission to the International Space Station.
The Alfa Romeo 121 eight-cylinder, air-cooled, inverted V engine for aircraft use.
The Mazda 121 automobile.
There are 121 marble slots on a Chinese checkers board.
121 is the number of points required to win a standard game of Cribbage.
The Year 121 ADIn the year 121 AD the Temple of Venus was built in Rome.
In the year 121 AD Roman Emperor Marcus Aurelius was born.
In the year 121 AD Empress Deng Sui died. (China)
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