269 (two hundred [and] sixty-nine) is the natural number between 268 and 270. It is also a prime number.

← 268 269 270 →
Cardinaltwo hundred sixty-nine
Ordinal269th
(two hundred sixty-ninth)
Factorizationprime
Primeyes
Greek numeralΣΞΘ´
Roman numeralCCLXIX
Binary1000011012
Ternary1002223
Senary11256
Octal4158
Duodecimal1A512
Hexadecimal10D16

In mathematics

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269 is a twin prime,[1] and a Ramanujan prime.[2] It is the largest prime factor of 9! + 1 = 362881,[3] and the smallest natural number that cannot be represented as the determinant of a 10 × 10 (0,1)-matrix.[4]

In other fields

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References

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  1. ^ Sloane, N. J. A. (ed.). "Sequence A001359 (Lesser of twin primes)". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation.
  2. ^ Sloane, N. J. A. (ed.). "Sequence A104272 (Ramanujan primes)". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation.
  3. ^ Sloane, N. J. A. (ed.). "Sequence A002583 (Largest prime factor of n! + 1)". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation.
  4. ^ Sloane, N. J. A. (ed.). "Sequence A013588 (Smallest positive integer not the determinant of an n X n 0-1 matrix)". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation.
  5. ^ "I-269 corridor finally opens, connecting I-55, I-40". Action News 5. 26 October 2018. Retrieved 27 February 2024.
  6. ^ Ahituv, Netta (21 March 2013). "The Israeli Calf That Started a Mass Tattoo Movement". Haaretz.
  7. ^ Laylin, Tafline (4 April 2013). "269life Activists Etch and Burn White Calf Branding Number Into Skin". Green Prophet. Archived from the original on 8 April 2013.
  8. ^ "Missouri State Route 269: Clay County". www.billburmaster.com.
  9. ^ "Comoros (country code +269)" (PDF). www.itu.int. Retrieved 27 February 2024.
  10. ^ North American Numbering Plan Administrator (NANPA) (7 August 2001). "616 NPA Split; Creating 269 NPA (Michigan)" (PDF). www.nationalnanpa.com. Retrieved 27 February 2024.

See also

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