31

This number is a prime.

Just showing those entries submitted by 'Coneglan': (Click here to show all)

© Baskin-Robbins
+ The big "31" sign made its debut at all Baskin-Robbins stores in 1953, offering customers a different ice cream for every day of the month. Note that 31 is the largest prime factor of 1953. [Coneglan]

(There is one curio for this number that has not yet been approved by an editor.)

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