269 (number)
269 (two hundred [and] sixty-nine) is the natural number between 268 and 270. It is also a prime number.
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| Cardinal | two hundred sixty-nine | |||
| Ordinal | 269th (two hundred sixty-ninth) | |||
| Factorization | prime | |||
| Prime | yes | |||
| Greek numeral | ΣΞΘ´ | |||
| Roman numeral | CCLXIX | |||
| Binary | 1000011012 | |||
| Ternary | 1002223 | |||
| Octal | 4158 | |||
| Duodecimal | 1A512 | |||
| Hexadecimal | 10D16 | |||
In mathematics
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]
gollark: 40% of its max throttle, whatever.
gollark: I accidentally didn't add enough cooling for its reactor, so the engine can only run at something like 40% power, so it is very slow.
gollark: My communications satellite is doing communications satellite things.
gollark: Why not just make an underground bunker?
gollark: Observe, my command-computer-based three-dimensional shape drawer.
See also
- Area code 269
- Calf 269 animal liberation movement
- Hawkmoon 269 pop song by U2
- List of highways numbered 269
References
- Sloane, N. J. A. (ed.). "Sequence A001359 (Lesser of twin primes)". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation.
- Sloane, N. J. A. (ed.). "Sequence A104272 (Ramanujan primes)". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation.
- Sloane, N. J. A. (ed.). "Sequence A002583 (Largest prime factor of n! + 1)". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation.
- 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.
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