Milestones report

The Milestones report on PrimeNet records past important events in the history of GIMPS. It also shows current progress toward future milestones.

Types of past milestones listed (important, significant, minor):

• Discovery of new Mersenne primes.
• Double checking all numbers less than a given Mersenne Prime, thus proving its place in the sequence of MP's (e.g. 'verifying' that M32 and M33 are not M33 and M34).
• Testing all numbers less than a given Mersenne Prime once.
• Double checking all numbers below some xx,000,000 threshold.
• Testing all numbers below some xx,000,000 threshold once.

Current progress milestones listed:

• "All exponents below xx,xxx,xxx have been tested and double-checked"

Indcates that the status of every Mersenne number (with a prime exponent) below the number listed is known (it has a known factor, it has been proven prime, or it has two Lucas-Lehmer tests with matching non-zero residues.)

• "All exponents below xx,xxx,xxx have been tested at least once"

Indicates that every Mersenne number (with a prime exponent), below the number listed, has a known factor or has had at least one Lucas-Lehmer test performed on it.

• "Countdown to testing all exponents below M(xxxxxxxx) once: z,zzz"

Indicates how many Mersenne numbers (with a prime exponent), below the Mersenne prime listed, do not have a known factor and have not at least one Lucas-Lehemer test.

• "Countdown to proving M(xxxxxxxx) is the YY th Mersenne Prime: zzz,zzz"

Indicates how many first time L-L tests and double checks (combined) are needed to double check all Mersenne numbers (with a prime exponent), below the Mersenne prime listed (thus proving its place in the sequence of MP's).

External links

• Link to report