fond of a factor? Urn yourself to become inane

[storm5510]

M573851 has a 90.320-bit (28-digit) factor: 1544960751860681271073683793 (ECM,B1=250000,B2=25000000,Sigma=3382465195143985)

[masser]

Originally Posted by storm5510

M573851 has a 90.320-bit (28-digit) factor: 1544960751860681271073683793 (ECM,B1=250000,B2=25000000,Sigma=3382465195143985)

Nice find! How many curves did you run? (Maybe I'm looking in the wrong places, but I don't see curve counts for the results line with factors found)

[James Heinrich]

Originally Posted by masser

Nice find! How many curves did you run? (Maybe I'm looking in the wrong places, but I don't see curve counts for the results line with factors found)

According to the PrimeNet results, storm5510 ran 6 curves and then found this factor. 424 other curves had been run by other users prior to finding the factor.

[storm5510]

Originally Posted by masser

Nice find! How many curves did you run? (Maybe I'm looking in the wrong places, but I don't see curve counts for the results line with factors found)

The default automatic reservation from PrimeNet is 7 curves for ECM.

My largest-ever find was 39 digits. As a general rule, I don't post anything now less then 30 digits, but it had been a while since I had posted anything at all, so I thought, why not...

[firejuggler]

Another factor !
M32109773 has a 87.489-bit (27-digit) factor: 217225910846909775855945167 (P-1,B1=500000,B2=15000000,E=12)


Nice and large!

[petrw1]

Manual testing	29209879	F	2020-11-13 00:45	0.0	Factor: 4531021175987334651209 / TF: 71-72	15.3960
Manual testing	29209853	F	2020-11-13 00:45	0.0	Factor: 1372528680708957106817 / TF: 70-71	1.7791
Manual testing	29209777	F	2020-11-13 00:45	0.0	Factor: 2937064028034979220513 / TF: 71-72	5.1553

OK I lied just a bit (not Donaldish).

The factors are reported in a row by misfit; but I still got 3 out of 8 attempts and 2 were consecutive

[petrw1]

Sid & Andy	Manual testing	44646643	F	2020-11-13 22:40	0.0	62.3632	Factor: 31281450177560922551089 / TF: 74-75*
Sid & Andy	Manual testing	44646619	F	2020-11-13 22:40	0.0	52.8812	Factor: 28972011828164945454479 / TF: 74-75*

[Jwb52z]

P-1 found a factor in stage #1, B1=729000.
UID: Jwb52z/Clay, M101146343 has a factor: 498059508840817429391615399 (P-1, B1=729000)

88.686 bit.

[firejuggler]

P-1 found a factor in stage #2, B1=500000, B2=15000000
M32120479 has a factor: 704279413979608134427969766927( P-1, , B1=500000, B2=15000000)


99.152 bits

[firejuggler]

I know, it is a composite but still
M32148013 has a 171.369-bit (52-digit) composite (P26+P27) factor: 3866049125437654294832342492322663453310186293606097 (P-1,B1=500000,B2=15000000,E=12)


3866049125437654294832342492322663453310186293606097=13036577178475811829280543 * 296554001292665871025982479

[Ensigm]

Originally Posted by firejuggler

I know, it is a composite but still
M32148013 has a 171.369-bit (52-digit) composite (P26+P27) factor: 3866049125437654294832342492322663453310186293606097 (P-1,B1=500000,B2=15000000,E=12)


3866049125437654294832342492322663453310186293606097=13036577178475811829280543 * 296554001292665871025982479

Impressive! Really hope I can get a fat composite factor someday too. (If the probability of a factor within a set of P-1 bounds is independent of the presence of another factor, then that day could be only a few months away,)