Fibonacci Numbers

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richie
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11 Sep 2008, 5:41 pm

13380115429233940095604389734410310117100995067992702323161470502791037473665635425809

13 380115 429233 940095 604389 734410 310117 100995 067992 702323 161470 502791 037473 665635 425809 =
4909 x 25357 x 8097 429243 052573 x 13 274610 762728 475186 529036 678515 926243 932120 323278 453753 698141

Number of divisors: 16

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TallyMan
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12 Sep 2008, 3:57 am

21649481537897403506609107715822337285038973915379503528404929519011871658725122483505

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richie
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Age: 67
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12 Sep 2008, 4:18 pm

35029596967131343602213497450232647402139968983372205851566400021802909132390757909314

35 029596 967131 343602 213497 450232 647402 139968 983372 205851 566400 021802 909132 390757 909314 =
2 x 5 449861 x 972663 078773 x 5 687182 485808 243129 x 30 362561 855982 035333 x 19134 702400 093278 081449 423917

Number of divisors: 64

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TallyMan
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12 Sep 2008, 4:20 pm

56679078505028747108822605166054984687178942898751709379971329540814780791115880392819

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richie
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12 Sep 2008, 4:24 pm

91708675472160090711036102616287632089318911882123915231537729562617689923506638302133

91 708675 472160 090711 036102 616287 632089 318911 882123 915231 537729 562617 689923 506638 302133 =
13 x 353 x 456 512029 x 2710 260697 x 16152 102821 660189 537197 311838 569854 152041 699593 953947 661476 644869

Number of divisors: 32

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TallyMan
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12 Sep 2008, 4:32 pm

148387753977188837819858707782342616776497854780875624611509059103432470714622518694952

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richie
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12 Sep 2008, 5:36 pm

240096429449348928530894810398630248865816766662999539843046788666050160638129156997085

240 096429 449348 928530 894810 398630 248865 816766 662999 539843 046788
666050 160638 129156 997085 = 5 x 99194 853094 755497 x 845 417665 832830
648601 x 200996 663240 698258 054501 x 2 848829 070117 112957 136261

Number of divisors: 32

Factoring took a very long time...
Factorization complete in 0d 0h 50m 1s
ECM: 43137240 modular multiplications
Prime checking: 28156 modular multiplications
SIQS: 210227 polynomials sieved
43191 sets of trial divisions
6656 smooth congruences found (1 out of every 26638 values)
33546 partial congruences found (1 out of every 5285 values)
4436 useful partial congruences

Last week:

TallyMan wrote:

475420437734698220747368027166749382927701417016557193662268716376935476241

This is F-359 a Fibonacci Prime
475 420437 734698 220747 368027 166749 382927 701417 016557 193662 268716 376935 476241 is prime
Number of divisors: 2

We are getting close to F-431 and F-433 both are primes

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TallyMan
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12 Sep 2008, 5:38 pm

388484183426537766350753518180972865642314621443875164454555847769482631352751675692037

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richie
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12 Sep 2008, 5:41 pm

628580612875886694881648328579603114508131388106874704297602636435532791990880832689122

628 580612 875886 694881 648328 579603 114508 131388 106874 704297 602636 435532 791990 880832 689122 =
2 x 277 x 9173 x 2114 537501 x 85526 722937 689093 x
683947 238399 029925 033711 768294 717540 495219 762245 783337

Number of divisors: 64

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TallyMan
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12 Sep 2008, 5:55 pm

1017064796302424461232401846760575980150446009550749868752158484205015423343632508381159

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richie
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12 Sep 2008, 6:44 pm

1645645409178311156114050175340179094658577397657624573049761120640548215334513341070281

1645 645409 178311 156114 050175 340179 094658 577397 657624 573049 761120 640548 215334 513341 070281 =
11 623061 x 41725 948237 x 3393 200564 226497 046882 583008 131573 453035 659086 661826 488296 331577 216633

Number of divisors: 8

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TallyMan
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13 Sep 2008, 4:59 am

2662710205480735617346452022100755074809023407208374441801919604845563638678145849451440

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richie
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13 Sep 2008, 9:30 am

4308355614659046773460502197440934169467600804865999014851680725486111854012659190521721

4308 355614 659046 773460 502197 440934 169467 600804 865999 014851 680725 486111 854012 659190 521721 =
11789 x 644 049169 x 45 688564 527041 x 12 419612 272955 106811 356207 991726 829826 708946 646468 147276 038541

Number of divisors: 16

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TallyMan
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13 Sep 2008, 9:49 am

6971065820139782390806954219541689244276624212074373456653600330331675492690805039973161

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richie
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Joined: 9 Jan 2007
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Location: Lake Whoop-Dee-Doo, Pennsylvania

13 Sep 2008, 12:13 pm

11279421434798829164267456416982623413744225016940372471505281055817787346703464230494882

11279 421434 798829 164267 456416 982623 413744 225016 940372 471505 281055 817787 346703 464230 494882 =
2 x 17 x 108289 x 1 435097 x 142 017737 x 2971 215073 x
5059 011062 939973 161728 794842 994673 444156 809986 180713 505281

Number of divisors: 128

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TallyMan
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13 Sep 2008, 1:22 pm

18250487254938611555074410636524312658020849229014745928158881386149462839394269270468043

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