2^n - 1 is the Mersenne prime, not the exponent, right? (Even though the exponent is always prime). So therefore, the new prime should be 2^43,112,609 - 1, and

2^n - 1 is the Mersenne prime, not the exponent, right? (Even though the exponent is always prime). So therefore, the new prime should be 2^43,112,609 - 1, and not just 43,112,609