next
Returns the first integer greater than this BigInteger that is probably prime. The probability that the number returned by this method is composite does not exceed 2-100. This method will never skip over a prime when searching: if it returns p, there is no prime q such that this < q < p.
Return
the first integer greater than this BigInteger that is probably prime.
Since
1.5
Throws
this < 0 or this is too large.