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-   -   Subproject #5: 800k-900k sequences to 100 digits (https://www.mersenneforum.org/showthread.php?t=13029)

EdH 2010-02-20 03:15

[URL="http://factordb.com/search.php?se=1&aq=818148&action=last20&fr=&to="]818148[/URL] is finished: size 105, i1067, 2[sup]2[/sup] * 3[sup]2[/sup] * 7[sup]2[/sup] * 89 * 127 * 306496796267 * c86

EdH 2010-02-20 04:07

reserving 817248 and 819456

fivemack 2010-02-20 10:27

Last two 890k sequences (one in 890-895 and one in 895-900) finished this morning.

79 sequences, of which 1 termination and 78 at 100 digits.

I stopped at exactly C100, so some of these may be easier than others to take forward.

Greebley 2010-02-20 13:11

Done with 816822, 102 Digits, 2^2*7

EdH 2010-02-20 14:13

[URL="http://factordb.com/search.php?se=1&aq=819456&action=last20&fr=&to="]819456[/URL] is finished: size 100, i1077, 2[sup]2[/sup] * 3 * 7 * 119039 * c93

reserving 818616 and 818748

I'm running several single core machines and am trying to bring some older "anchient?" ones on line to play with. Should I direct my efforts toward some other area? Some of these sequences do complete overnight on my 24/7 machine.

One is 2.4G; the rest <2G

RichD 2010-02-20 18:49

reserving 818048

10metreh 2010-02-20 18:54

As I said a few posts ago, this subproject is fine even for lone P4s: we're not in too much of a hurry and we don't really mind about one sequence not getting completed for ages. Memory doesn't become an issue below 100 digits even with only 256MB.
Is G gigahertz or gigabytes? Assuming gigahertz, I'm not too sure how long it takes to bring a sequence to 100 digits on a P3, but this subproject is fine for slow but not too slow computers such as the earlier P4s. That's one of the good things about this project. :smile:

unconnected 2010-02-20 20:32

Reserving 824928, 824600, 822246, 820740, 820590.

Batalov 2010-02-20 21:31

Reserving
[FONT=Arial Narrow]821232 (c82) 781 . 453614631.. = 2^2 * 3 * 79
821640 (c80) 853 . 140984070.. = 2^2 * 3 * 23 * 421 * 1999
823620 (c83) 490 . 344445850.. = 2^4 * 3 * 937[/FONT]

RichD 2010-02-20 23:07

818048 is done size 100; [COLOR="Red"]2^2[/COLOR] * 3 * [COLOR="red"]7[/COLOR] * <small_primes> * c81

reserving 817986

RichD 2010-02-21 04:01

817986 is done, size 102; [COLOR="Red"]2^4[/COLOR] * 3^3 * 5 * [COLOR="red"]31[/COLOR] * 61 * c96

reserving 817542


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