11
This number is a prime.
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At least one edge of the hypothetical perfect cuboid (or
Euler integer brick) is divisible by 11. [Beedassy]
The only number in base ten that is not Nivenmorphic ; In other words, 11 never divides a number ending in 11 if its sum of digits is also equal to 11. [Boscaro and
Beedassy]
The smallest prime p such that the sum of digits of
p divides the sum of digits of the pth prime. [Beedassy]
The smallest odd Ramanujan prime. [Beedassy]
The first number n that divides N-1, where N is the least common multiple of all numbers below n. [Beedassy]
It suffices to pick up any 11 numbers among the first
hundred to ensure getting a pair close enough for their
square roots to differ by less than unity. [Beedassy]
The smallest prime p whose next p primes
starting with p add up to a prime (emirp) ending in
p: 11 + 13 + ... + 43 + 47 = 311. [Beedassy]
The smallest prime whose digits are both nonprime and noncomposite. [Beedassy]
The smallest number of divisors which no number can have among the first thousand. [Beedassy]
The highest prime dividing the number of yards, feet, or
inches (basic US length units) that make up a mile. [Beedassy]
Ekadashi (11 in Sanskrit) is the sacred eleventh day of each of the bright and dark halves of a lunar month. [Beedassy]
Viggo Brun showed in 1920 that there exists a number with
at most 11 prime factors between n and n +
sqrt(n) for sufficiently large n. [Beedassy]
With reference to the Ten Commandments of Christianity,
"The Eleventh Commandment" is a term used to describe a
rule or policy that is extremely important to the point of
being sacred. [Beedassy]
The YouTube online unlimited video-sharing platform
uses a 11-character randomly generated code in base 64 to
identify each upload. [Beedassy]
There are eleven distinct nets on a plane that can be
folded up to produce a cube. [Beedassy]
The maximum number of turns required to solve the Mini Cube
(the 2×2×2 equivalent of a Rubik's Cube) is up to 11 half
or quarter turns. [Beedassy]
11π is the area enclosed inside the Cardioid with polar
equation r = 3 + 2cosθ, where 0 ⩽ θ ⩽ 2π. [Beedassy]