int alpha=10;
boolean isPrime=aBigInteger.isprobablePrime(alpha);
//false: this BigInteger is 100% not prime
//true: this BigInteger may be a prime, the probability is larger
//than (1-1/20)=95%.
//the larger the alpha, the longer the calculation time will be.
boolean isPrime=aBigInteger.isprobablePrime(alpha);
//false: this BigInteger is 100% not prime
//true: this BigInteger may be a prime, the probability is larger
//than (1-1/20)=95%.
//the larger the alpha, the longer the calculation time will be.
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