[QUOTE=storm5510;603269]This is for M7363 which does not appear in any database I can find.[/QUOTE]
There are already some factors of this number noted in [URL="http://factordb.com/index.php?query=2%5E73631"]FactorDB[/URL]. 
This is a nice one:
[M]M113334241[/M] has a 112.193bit (34digit) factor: [url=https://www.mersenne.ca/M113334241]5936815441525476391128324308118983[/url] (P1,B1=551000,B2=21185000) 
[QUOTE=James Heinrich;603270]7363 is not prime, therefore it's not a Mersenne number.[/QUOTE]
Of course it's not prime. All the ECM exponents in the GIMPS database with found factors are not prime either. That section should not exist. [U]Edit[/U]: I think you meant to say it is not a natural prime. Without the "2^" and "1" it has two factors. 37 and 199. 
[QUOTE=storm5510;603282]Of course it's not prime. All the ECM exponents in the GIMPS database with found factors are not prime either. That section should not exist.
[U]Edit[/U]: I think you meant to say it is not a natural prime. Without the "2^" and "1" it has two factors. 37 and 199.[/QUOTE] 7363 itself is not prime: 7363 = 37*199. It IS still a Mersenne Number which are all 2[SUP]n[/SUP]1 for integer n: [url]https://mathworld.wolfram.com/MersenneNumber.html[/url] BUT it is not a Mersenne Number that GIMPS cares about, since only those with prime exponents have a chance to be a Mersenne Prime, that is why it is not in the databases. [url]https://www.mersenne.org/report_exponent/?exp_lo=7300&exp_hi=7400&text=1[/url] 
Finally got my first Top 10 P1 factor! :toot:
[M]M239119[/M] has a 157.217bit (48digit) factor: [url=https://www.mersenne.ca/M239119]212381331667662033847003656413805352059577410799[/url] (P1,B1=30000000,B2=10120247026890) k = 3 × 71 × 5,573 × 79,999 × 830,887 × 1,653,749 × 5,047,213 × 674,304,195,209 
[QUOTE=kruoli;603319]Finally got my first Top 10 P1 factor! :toot:[/QUOTE]Congrats!
Your new factor coincidentally also pushes my bestever result out of the top200 :ermm: 
[QUOTE=kruoli;603319]Finally got my first Top 10 P1 factor! :toot:
[M]M239119[/M] has a 157.217bit (48digit) factor: [url=https://www.mersenne.ca/M239119]212381331667662033847003656413805352059577410799[/url] (P1,B1=30000000,B2=10120247026890) k = 3 × 71 × 5,573 × 79,999 × 830,887 × 1,653,749 × 5,047,213 × 674,304,195,209[/QUOTE] Excellent find! 
P1 autoassigned by PrimeNet. [I]Prime95 v29.8 B6[/I]
M113476799: Factor: 435875148110816983338962773598903 / (P1, B1=515000, B2=8368750) 
[QUOTE=storm5510;603499]Prime95 v29.8 B6[/QUOTE]Why so old?

[QUOTE=James Heinrich;603502]Why so old?[/QUOTE]
I am glad you ask this question. On my older systems, 29.x outperforms 30.x. I never run PRP's or certification work. If I don't use it, then I don't need the capability. I sometimes use a 6.x version of [I]gpuOwl[/I] for P1's, but it is not selftending like [I]Prime95[/I] is. It is one less thing I have to keep up with. 
[QUOTE=storm5510;603541]On my older systems, 29.x outperforms 30.x[/QUOTE]I can't comment to other worktypes, but this is absolutely untrue for P1. v30.8 has made absolutely huge gains in P1 performance. Do not judge it by how fast it runs, but by the bounds and probability it can achieve. Please don't do P1 badly, you'll miss factors unnecessarily and (if done badly enough) people may need to redo your work, which is the definition of inefficient.

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