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-   -   Subproject #9: 150k-200k sequences to 110 digits (https://www.mersenneforum.org/showthread.php?t=15093)

unconnected 2011-02-22 18:28

165480: i879, size 126, [COLOR=Blue]2^4*3^2[/COLOR] gnfs-ready
165600: i2533, size 112, [COLOR=Red]2^2*3^3*7[/COLOR] (added ~1500 indexes)

bchaffin 2011-02-22 23:33

I'll take the remaining 165k, 166k, and 167k:

165624, 165744, 165918, 165984,
166248, 166440, 166524, 166746, 166768,
167076, 167358, 167382, 167748

EdH 2011-02-23 17:46

[URL="http://www.factordb.com/sequences.php?se=1&eff=2&aq=157284&action=last20&fr=0&to=100"]157284[/URL] is finished: size 110, i2757, 2[SUP]6[/SUP] * 3 * 5 * 11 * 71 * 6111190037 * c94


[URL="http://www.factordb.com/sequences.php?se=1&eff=2&aq=158418&action=last20&fr=0&to=100"]158418[/URL], OTOH, was afraid of 110 digits and only made it to 109 before dropping to 105. It's currently on its way back up, but time will tell...

Greebley 2011-02-24 02:41

Done with 163992, 111 Digits, 2^3*3*5

unconnected 2011-02-25 12:41

167180: i1474, size 114, [COLOR=Red]2^2*7[/COLOR]

Andi47 2011-02-25 13:44

unreserving 165606 at i=1842, sz. 106, [COLOR="Red"]2²*7[/COLOR]*11*1741*c110 (ecm to B1=25e4)

edit: reserving 168196

Greebley 2011-02-25 16:56

Done with 163590, 110 Digits, 2*3^2*5
Done with 164220, 110 Digits, 2*3
Done with 164556, 112 Digits, 2^3*3
Done with 164622, 112 Digits, 2^4*31
Done with 164688, 118 Digits, 2^2*3*7
reserving (171xxx and 172xxx)
171040, 171462, 171552, 171570, 171648, 171888, 171960, 171972,
172004, 172032, 172116, 172308, 172340, 172344, 172668, 172692, 172880,

Andi47 2011-02-25 17:03

[QUOTE=Andi47;253686]unreserving 165606 at i=1842, sz. 106, [COLOR="Red"]2²*7[/COLOR]*11*1741*c110 (ecm to B1=25e4)

[/QUOTE]

oops, I meant size 1[B]1[/B]6, not 106.

unconnected 2011-02-25 19:35

Taking 174720 174984 172340.

bchaffin 2011-02-25 22:52

Done with all of my reservations (165k, 166k, and 167k). Most were uninteresting, but there was one bit of excitement with 166768 which added 3601 terms, with many ups and downs, and got as small as 26 digits.

165624: added 50 terms (min 103 digits): i987 (size 110) = 2^4 * 3 * 5 * 7 * 13 * 31 * c104
165744: added 6 terms (min 108 digits): i615 (size 111) = 2^3 * 3 * 5 * c109
165918: added 62 terms (min 103 digits): i1116 (size 111) = 2^2 * 7 * 141959 * c105
165984: added 72 terms (min 103 digits): i1468 (size 117) = 2^2 * 3^2 * 5 * 7^2 * 17 * 509 * 1159393 * c103
166248: added 38 terms (min 104 digits): i855 (size 111) = 2^2 * 7 * 1381 * 10061 * c103
166440: added 22 terms (min 107 digits): i662 (size 112) = 2^6 * 3 * 353 * c108
166524: added 34 terms (min 107 digits): i1037 (size 115) = 2^4 * 3 * 31 * c112
166746: added 46 terms (min 103 digits): i696 (size 117) = 2^4 * 3 * 13 * 31 * 364543 * c108
166768: added 3601 :exclaim: terms (min 26 digits): i4709 (size 111) = 2^3 * 3 * c110
167076: added 62 terms (min 103 digits): i1167 (size 111) = 2^2 * 7 * 29 * 8059 * c104
167358: added 92 terms (min 103 digits): i2339 (size 110) = 2 * 3 * 5 * c109
167382: added 67 terms (min 102 digits): i1099 (size 113) = 2^2 * 7 * 17 * c110
167748: added 85 terms (min 104 digits): i1023 (size 110) = 2 * 3 * 5^3 * 11 * 19 * 73 * c103

Now back to 4788...

Andi47 2011-02-26 06:36

[QUOTE=bchaffin;253754]Done with all of my reservations (165k, 166k, and 167k).
166768: added 3601 :exclaim: terms (min 26 digits): i4709 (size 111) = 2^3 * 3 * c110
[/QUOTE]

nice! :tu: How much ECM did the cofactor of this one have?

I'll take it for a few (or much, depending on how it develops) more steps, added a reservation over there in the main reservation thread.


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