This number is a prime.
The year the first President of the United States (George Washington) took office.
The French mathematician Augustin-Louis Cauchy was born in 1789. [Luhn]
Seventeen 89's followed by eighty-nine 17's is a prime of palindromic length. [De Geest]
The year Baptist minister Elijah Craig established a still in Georgetown, Kentucky, and began producing America's first bourbon whiskey from a base of corn.
The largest emirp formed from the sum of two digits
followed from a concatenation of these digits. [Loungrides]
Statehood for North Carolina occurred in an emirp year (1789). [Green]
The smallest emirp whose sum of digits is an odd composite
The sum of the first 1789 Sophie Germain prime numbers falls between a pair of prime twins. [Gaydos]
The "Storming of the Bastille" occurred in 1789. [Loungrides]
Another emirp is created if the internal digits of 1789 are switched. It is the smallest 4-digit distinct-digit emirp with this property. [Loungrides]
Uranium was discovered in 1789 by German chemist Martin Klaproth in the mineral pitchblende. [Morris]
Consider the concatenation of the first 1789 positive even integers (i.e., 2468101214...357435763578). Half of this number is a 6604-digit probable prime. [Sumpeloh]
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell