999

999 is the largest three-digit number in decimal. For this reason, it has been used in pete-5.c and pete-8.c.
It is (not considering myriad, lakh and -illiard) the largest number with an accepted English name (namely, nine hundred ninety-nine).
999 is the 8th Kaprekar number.OIES A006886
999 is the United Kingdom's emergency telephone number launched in 1937, which is the world's first emergency telephone number.Adi Robertson, 999, the world's first emergency telephone number, turns 75 today The Verge, June 30, 2012.
== Sources ==
Category:Numbers
Category:Bignum Bakeoff
Category:Class 1
Category:Computers
Category:Numbers with 3 digits
Category:Odd numbers
Category:Repdigit numbers
Category:Unnamed numbers with googological uses