math_fact: 2471 is the smallest number that can not be formed using the numbers 2^{0}, 2^{1}, ... , 2^{6}, together with the symbols +, –, × and ÷.
trivia: 2471 is an uninteresting number.
historical_date: October 6th is the day in 1600 that Jacopo Peri's Euridice, the earliest surviving opera, receives its première performance in Florence, signifying the beginning of the Baroque Period.