prime checker with BigInteger

[Krzychu]

Hi,
I'm looking for an algorithm of prime checker for big numbers.
It's supposed to use BigInteger class.
Thanks for your help for newbie.

 

[Thomas Schodt]

I'm looking for an algorithm of prime checker for big numbers.
It's supposed to use BigInteger class.

Are you looking for
java.math.BigInteger.isProbablePrime()