N=(64283^2161-1)/64282

Portion of N-1 factored: 28.0657%
Portion used in proof: 28.0657%

Factorization of N-1:
64283 = 64283
phi_2 = 2 * 2 * 3 * 11 * 487
phi_3 = 7 * 1201 * 491539
phi_4 = 2 * 5 * 61 * 241 * 28109
phi_5 = 6661 * 2563609476805621
phi_6 = 3 * 67 * 79 * 433 * 601
phi_8 = 2 * 767161 * 11129304724801
phi_9 = 19 * 72469 * 51247295312173553209987
phi_10 = 8461 * 2018162327289281
phi_12 = 13 * 37 * 8641 * 4108425956473
phi_15 = 31 * 571 * 29842405159051 * 551989366438123614391
phi_16 = 2 * 17 * 63095841937 * 135921899476781437068042449
phi_18 = 3 * 109 * 215788882677613663761800929
phi_20 = 5 * 41 * 2801 * 17090141 * 46645047401 * 637016875255841
phi_24 = 73 * 3673 * 15397537 * 70627534692051392881384177
phi_27 = 163 * 1317806674363 * 240454158391 * 89777841442085521 * 2073338754109699969 * 36544281940372759089017203
phi_30 = 631 * 88771 * 5205654930222870790842690529501
phi_36 = 15661 * 20341 * 218233 * 29990971873 * 2388091078706060557064771562175777
phi_40 = 592321 * p72
phi_45 = 85703506633621 * p102
phi_48 = 3943633 * 32894118529 * 5857706665009 * p48
phi_54 = 3 * 27714924361182805093 * p67
phi_60 = 345074581 * 2154974440244059628810773089241 * p39
phi_72 = 238066201 * 833565673 * 53278288687369 * 1336630834135873 * p70
phi_80 = 21531787596213761 * 5321523044429464538069441 * 44794258382952542998070662821983666371105082836709443681 * p58
phi_90 = 2521 * 8357441221 * 450558336802030381 * 3515032570006867761238397735724985669231 * p45
phi_108 = 1621 * 892189 * 7178093492149 * 174272151133 * p140
phi_120 = 4561 * 35401 * 18690843051391432321 * p127
phi_135 = 271 * 4591 * 68581 * 543241 * 37665273436510128571 * 4726961739278823155511305721216171871 * p274
phi_144 = 432001 * 440497 * 373187992806721 * c205
phi_180 = 181 * c229
phi_216 = 2377 * 441937 * 2451785254156081 * c322
phi_240 = 344936554801 * 638151316321 * 2255485440405601 * 420104901081184644759601 * c246
phi_270 = 8551981 * 326765538181 * 49320705533574331 * c312
phi_360 = 70841521 * c454
phi_432 = 2593 * 1159489 * 2961308626233630913 * c665
phi_540 = 541 * 20521 * 2876371334281 * p673
phi_720 = 100801 * 6604561 * c912
phi_1080 = 2161 * 7561 * 111524041 * 2298962521 * c1361
phi_2160 = c2770