269 (two hundred
ndsixty-nine) is the natural number between
268
__NOTOC__
Year 268 (Roman numerals, CCLXVIII) was a leap year starting on Wednesday of the Julian calendar. At the time, it was known in Rome as the Year of the Consulship of Paternus and Egnatius (or, less frequently, the year 1021 ''Ab urbe ...
and
270. It is also a
prime number
A prime number (or a prime) is a natural number greater than 1 that is not a Product (mathematics), product of two smaller natural numbers. A natural number greater than 1 that is not prime is called a composite number. For example, 5 is prime ...
.
In mathematics
269 is a
twin prime
A twin prime is a prime number that is either 2 less or 2 more than another prime number—for example, either member of the twin prime pair or In other words, a twin prime is a prime that has a prime gap of two. Sometimes the term ''twin prime' ...
,
and a
Ramanujan prime.
It is the largest prime factor of 9! + 1 = 362881,
and the smallest natural number that cannot be represented as the
determinant
In mathematics, the determinant is a Scalar (mathematics), scalar-valued function (mathematics), function of the entries of a square matrix. The determinant of a matrix is commonly denoted , , or . Its value characterizes some properties of the ...
of a 10 × 10
(0,1)-matrix.
In other fields
*
Calf 269 was a calf that rose to fame after being rescued by Israeli activists in 2012. As a result, numerous people
branded the number "269" into their bodies over 2012 and 2013.
References
See also
*
269 AD
*
269 BC
*
Integers
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