1091
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Number
$1091$ (one thousand and ninety-one) is:
- The $182$nd prime number
- The smaller of the $40$th pair of twin primes:
- $1093 - 1091 = 2$
- The $40$th emirp after $13$, $17$, $31$, $37$, $\ldots$, $941$, $953$, $967$, $971$, $983$, $991$, $1009$, $1021$, $1031$, $1033$, $1061$, $1069$
- The equation $x^6 + 1091$ yields a composite number for all integer values of $x$ from $1$ to $3095$
Also see
- Previous ... Next: Prime Number
- Previous ... Next: Twin Primes
- Previous ... Next: Emirp
Sources
- 1997: David Wells: Curious and Interesting Numbers (2nd ed.) ... (previous) ... (next): $1091$