223 (number)

223 (number)

223 is the natural number between 222 and 224. It is also a prime number.

In mathematics

223 is a long prime, a lucky prime and a sexy prime (with 229) . 223 is the fourth Carol number and the third to be prime.

In chemistry

223 is the atomic mass of francium

In shooting

223 ("two twenty-three", or "two two three") can refer to a caliber, such as the .223 Remington.

In literature

223 is the final chapter of "The Curious Incident of the Dog in the Night-time" by Mark Haddon, which uses all prime numbers for its chapters due to its narrators Asperger's syndrome.


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