83 (number)

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title: "83 (number)" type: doc version: 1 created: 2026-02-28 author: "Wikipedia contributors" status: active scope: public tags: ["integers"] description: "Number" topic_path: "general/integers" source: "https://en.wikipedia.org/wiki/83_(number)" license: "CC BY-SA 4.0" wikipedia_page_id: 0 wikipedia_revision_id: 0

::summary Number ::

::data[format=table title="Infobox number"]

Field	Value
number	83
factorization	prime
prime	23rd
divisor	1, 83
::

| number = 83 | factorization = prime | prime = 23rd | divisor = 1, 83

83 (eighty-three) is the natural number following 82 and preceding 84.

In mathematics

83 is:

• the sum of three consecutive primes (23 + 29 + 31).
• the sum of five consecutive primes (11 + 13 + 17 + 19 + 23).
• the 23rd prime number, following 79 (of which it is also a cousin prime) and preceding 89.
• a Sophie Germain prime.
• a safe prime.
• a Chen prime.
• an Eisenstein prime with no imaginary part and real part of the form 3n − 1.
• a highly cototient number.
• the number of primes that are right-truncatable.
• a super-prime, because 23 is prime.

In other fields

• The eighth letter of the alphabet is H and the third letter is C, thus 83 stands for "Heil Christ," a greeting used by organizations that consider themselves to be Christian (While not necessarily a hate symbol, it is often used by hate organizations)
• An emoticon based on :3 with wide-open eyes.

References

References

1. "Sloane's A005384 : Sophie Germain primes". OEIS Foundation.
2. "Sloane's A005385 : Safe primes". OEIS Foundation.
3. "Sloane's A109611 : Chen primes". OEIS Foundation.
4. "Sloane's A100827 : Highly cototient numbers". OEIS Foundation.
5. {{Cite OEIS. A024770. Right-truncatable primes: every prefix is prime
6. "Hate Number Symbols: 83 - From A Visual Database of Extremist Symbols, Logos and Tattoos".

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