229

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Number

$229$ (two hundred and twenty-nine) is:

The $50$th prime number


The $11$th of $29$ primes of the form $2 x^2 + 29$:
$2 \times 10^2 + 29 = 229$ (Previous  ... Next)


The $2$nd of the $16$th pair of twin primes, with $227$


The $19$th long period prime after $7$, $17$, $19$, $23$, $29$, $47$, $59$, $61$, $97$, $109$, $113$, $131$, $149$, $167$, $179$, $181$, $193$, $223$


The $45$th positive integer $n$ such that no factorial of an integer can end with $n$ zeroes.


Also see