20200531, 01:04  #23 
"Serge"
Mar 2008
Phi(4,2^7658614+1)/2
2^{3}×7×163 Posts 

20200531, 03:16  #24 
Undefined
"The unspeakable one"
Jun 2006
My evil lair
2^{3}×727 Posts 
Only if you assume the test was run perfectly without any coding bugs or subtle system problems. And that the poster is upstanding and forthright without any agenda towards deception.

20200531, 03:17  #25 
Sep 2002
Database er0rr
6566_{8} Posts 
Another test needs to be done to get matching residue. There remains a nonzero chance that the number is prime. Maybe something like 1/2^10000 considering how fantastically accurate GEC is

20200531, 03:45  #26 
6809 > 6502
"""""""""""""""""""
Aug 2003
101×103 Posts
2^{5}·3·7·13 Posts 
I bet Ken is on it as we speak.

20200531, 05:53  #27 
"Serge"
Mar 2008
Phi(4,2^7658614+1)/2
2^{3}·7·163 Posts 
.

20200531, 15:22  #28 
"TF79LL86GIMPS96gpu17"
Mar 2017
US midwest
2·2,309 Posts 
How far has 2^{70237298350549551468899}1 been factored?

20200531, 15:24  #29  
"TF79LL86GIMPS96gpu17"
Mar 2017
US midwest
2·2,309 Posts 
Quote:


20200531, 16:06  #30 
6809 > 6502
"""""""""""""""""""
Aug 2003
101×103 Posts
2^{5}·3·7·13 Posts 
It is not worth anybody's time, expect the OP to worry about that.
2^110 per https://mersenneforum.org/showpost.p...5&postcount=19 Last fiddled with by Uncwilly on 20200531 at 16:15 
20200531, 16:09  #31 
"TF79LL86GIMPS96gpu17"
Mar 2017
US midwest
2×2,309 Posts 
I left M102589933 alone, since when I checked it earlier, it was reserved to GPU72. Then it progressed rapidly to a conclusion.
102589933 NF to 77 bits, P1 NF, PRP C, eliminated (Thanks Jan S et al) As a preemptive effort regarding further rhyming exponent claims, the few survivors have been taken a bit further 232589933 NF to 79 bits, P1 NF, PRP assigned (queued in gpuowl on a radeon vii) 642589933 NF to 84 bits, P1 in progress to B1=5740000,B2=172200000 (prime95 on i74790) 652589933 NF to 84 bits, P1 in progress to B1=5820000,B2=174600000 (gpuowl on radeon vii) M70237298350549551468899 I've done from zero, NF to 123 bits (Ernst's mfactor program took ~44 hours with 16 processes on a dual12corexeone52697 to do 122123 bits, with only ~15% impact on prime95 throughput thanks to hyperthreading; any further progress on it will be posted in https://www.mersenneforum.org/showpo...04&postcount=5. This one is wildly out of reach of P1 or primality testing, due to estimated file size, estimated memory requirements, software suitability, and run time projections) Last fiddled with by kriesel on 20200531 at 16:16 
20201009, 16:42  #32 
"TF79LL86GIMPS96gpu17"
Mar 2017
US midwest
2×2,309 Posts 
An update on the 7digit decimal rhyme exponent Mersennes of Mp51*, p=82589933:
232589933 NF to 79 bits, P1 NF, PRP composite, eliminated Still in the running as possible rhyming exponent primes: 642589933 NF to 84 bits, P1 NF 652589933 NF to 84 bits, P1 NF These would each take about as long to primality test as fifty 100M wavefront exponents. Last fiddled with by kriesel on 20201009 at 16:43 
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