up previous next
IsPrime

prime integer test

Syntax
IsPrime(N:INT):BOOL

Description
This function determines whether a small integer is prime. The range of permitted values for N is the same the range of permitted values for the NextPrime function: on most platforms N <= 45000 should work fine, on some platforms considerably larger values will work. For N greater than the limit an error is raised.

Example
IsPrime(32003);
TRUE
-------------------------------
IsPrime(10^100);
ERROR: IsPrime: number too large
CONTEXT: Return(Error("IsPrime: number too large"))
------------------------------- 


See Also