golden number

British  

noun

1. a number between 1 and 19, used to indicate the position of any year in the Metonic cycle, calculated as the remainder when 1 is added to the given year and the sum is divided by 19. If the remainder is zero the number is 19

   the golden number of 1984 is 9

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Example Sentences

Their phone number mostly consisted of the same digit repeated many times, making it a prized so-called "golden number".

From BBC • Jun. 26, 2023

On Twitter, the movement has taken on the hashtag #LaserRayUntil100K, which refers to a pledge among users to keep the laser rays until Bitcoin hits that golden number.

From Slate • Feb. 19, 2021

The Greeks were so impressed with this calculation that they had it inscribed in letters of gold upon stone, hence the golden number.

From The Borghesi Astronomical Clock in the Museum of History and Technology Contributions from the Museum of History and Technology, Paper 35, the Smithsonian Institution United States National Museum Bulletin 240 by Bedini, Silvio A.

In the year 1901 the epact was X, which is placed under the golden number 2; and new moons appear on the 21st January, 19th February, and 21st March….

From The Divine Office by Quigley, Edward J.

The current year will be given by the Julian period, reducible to any desired epoch, and, contained in the solar cycle, the golden number and the Roman cycle.

From The Borghesi Astronomical Clock in the Museum of History and Technology Contributions from the Museum of History and Technology, Paper 35, the Smithsonian Institution United States National Museum Bulletin 240 by Bedini, Silvio A.