Found a nice 'k' today:

[URL="http://mersenne-aries.sili.net/exponent.php?exponentdetails=79943021"]M79943021[/URL]
Factor = 2217770314776436337081
k = 2^[SIZE=2]2 * 5 * 227 * [COLOR=red]3055273981[/COLOR][/SIZE]
Digits = 22
Bits = 70.910

Another interesting k

[URL="http://mersenne-aries.sili.net/exponent.php?exponentdetails=79943693"]M79943693[/URL]
Factor = 6794411101274465993903
k = 43 × 1009 × 979440361
Digits = 22
Bits = 72.525

Are those P-1 or TF?

With k factors near 3 billion and 1 billion -- my guess would be TF

[QUOTE=cheesehead;295351]With k factors near 3 billion and 1 billion -- my guess would be TF[/QUOTE]

I've had a k factor up at 346M with the B-S extension, and as we know Mr. Hallet has a [i]ton[/i] of memory. So I just wanted to be sure, though I agree TF is more likely. (Also those expos are outside of his P-1 work size, if [URL="http://gpu72.com/reports/worker/b49e80e9382626afc7ebe2f81662dadb/"]this[/URL] or [URL="http://gpu72.com/reports/workers/p-1/graph/1-10/"]this[/URL] are anything to go by. :smile:)

I'm willing to be amazed by being wrong. :-)

[QUOTE=Dubslow;295347]Are those P-1 or TF?[/QUOTE]

Yes, they're both TF. I wish they were P-1 since I still haven't seen a B-S factor.

Got my 100th factor for GPU72.
Now I need to overtake Greg before he employs the same strategem (which is too easy)

P-1 found a factor in stage #2, B1=135000, B2=2733750, E=6.
M4421467 has a factor: 8546596152478901798249 (73 bits)

k=2^2 × 11 × 541 × 3,301 × 12,299,893

I believe that's the first E=6 B-S factor I've seen. Nice going!

Found a nice stage-1 factor: 405845656468221226445605471

[URL="http://mersenne-aries.sili.net/exponent.php?exponentdetails=50647693"]M50647693[/URL]
bits: 88.391
digits: 27
k = 3 × 5 × 907 × 17959 × 55229 × 296909

Found some factors while running some 50 random exponents at 98M from 65 to 67.

found 1 factor for M98071543 from 2^65 to 2^67 [mfaktc 0.18 barrett79_mul32]
M98071543 has a factor: 146536851648186392249 [TF:65:67:mfaktc 0.18 barrett79_mul32]

k = 2[SUP]2[/SUP] × 83 × [COLOR="Red"]2250275899[/COLOR]


M98073133 has a factor: 55134581081542102081 [TF:65:67:mfaktc 0.18 barrett79_mul32]
found 1 factor for M98073133 from 2^65 to 2^67 [mfaktc 0.18 barrett79_mul32]

k = 2[SUP]5[/SUP] × 3[SUP]2[/SUP] × 5 × 757 × 257861

M98071789 has a factor: 101395775139293311447 [TF:65:67:mfaktc 0.18 barrett79_mul32]
found 1 factor for M98071789 from 2^65 to 2^67 [mfaktc 0.18 barrett79_mul32]

k = 3 × 7 × 11[SUP]2[/SUP] × 203442227

M98174059 has a factor: 126812702311349093167 [TF:65:67:mfaktc 0.18 barrett79_mul32]
found 1 factor for M98174059 from 2^65 to 2^67 [mfaktc 0.18 barrett79_mul32]

k = 3 × 10949 × 19662571