269 (number)

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

← 268 269 270 →
← 260 261 262 263 264 265 266 267 268 269 → List of numbers Integers ← 0 100 200 300 400 500 600 700 800 900 →
Cardinal	two hundred sixty-nine
Ordinal	269th (two hundred sixty-ninth)
Factorization	prime
Prime	yes
Greek numeral	ΣΞΘ´
Roman numeral	CCLXIX, cclxix
Binary	1000011012
Ternary	1002223
Senary	11256
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]

In other fields

• Calf 269 was a calf that rose to fame after being rescued by Israeli activists in 2012.^[5] As a result, numerous people branded the number "269" into their bodies over 2012 and 2013.^[6]