previousPrime

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previousPrime

$\begin{usage} previousPrime~n \end{usage}$

Signature

previousPrime: MachineInteger $\to$ MachineInteger

$\begin{params} {\em n} & \htmlref{\texttt{MachineInteger}}{MachineInteger} & An integer\\ \end{params}$

$\begin{retval} Returns the largest prime $p$\ in the collection with $n > p$, $0$\ if there are none. \end{retval}$

See Also

nextPrime(PrimeCollection), randomPrime(PrimeCollection)

Manuel Bronstein 2000-12-13