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Old 2020-05-23, 14:28   #9
kriesel
 
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"TF79LL86GIMPS96gpu17"
Mar 2017
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Quote:
Originally Posted by paulunderwood View Post
The "8" --> "10" in the exponent would be beyond expectation. It would take a day on a GPU [for] you to dismiss this claim, assuming P-1 does not turn up a factor.
P-1 to full PrimeNet bounds on M102589933 under way here, will complete in hours. https://www.mersenne.ca/exponent/102589933 says 5.6% probability of factor, no p-1 result reported yet. It would be silly to have primality tested it without doing that first.
Maybe he meant a Fermat number. That claim would be safe from computational attack for a while.
As stated in his post, a large power of two being prime, it's too absurd a claim to even bother including in the count in the "dubious claims" list behind the stats in https://www.mersenneforum.org/showpo...04&postcount=5

There are few rhyming prime exponents surviving even cursory TF above M82589933.
102589933 NF 74, further TF assigned to gpu72, P-1 underway
112589933 small factor
222589933 small factor
232589933 NF 71, go to 79 assigned, no p-1 yet 2290000,68700000
312589933 small factors
532589933 smallish factor
612589933 smallish factor
642589933 NF 70, go to 84 assigned, no p-1 yet 5740000,172200000
652589933 NF 71, go to 84 assigned, no p-1 yet 5820000,174600000
672589933 smallish factors
702589933 small factors
892589933 smallish factor
912589933 smallish factor
952589933 small factors
(up to 999M)

The 3 other survivors are being addressed with TF and may get some P-1 attention after.

Last fiddled with by kriesel on 2020-05-23 at 15:25
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