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As of 2015, the longest prime number known ends in 1.
No, zero is not the smallest single didget number. There negative single digit number from -1 through -9
The longest number between 1 and 2000 when depicted in Roman numerals is 1888, represented as MDCCCLXXXVIII. This number has the most characters (13) when written in Roman numerals compared to any other number within the given range.
01 = 1
yes it reached number 1, and it stayed there for 3 months