Base 13 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 660: | \[{13^{660}-1\over12}\] | 22 × 3 × 52 × 7 × 112 × 17 × 23 × 31 × 61 × 67 × 157 × 331 × 419 × 421 × 601 × 641 × 661 × 859 × 1123 × 2411 × 2861 × 4651 × 5281 × 6997 × 18041 × 28393 × 30941 × 53681 × 58411 × 82171 × 122167 × 161971 × 960961 × 28325071 × 37869877 × 460655521 × 1453046401 × 128011456717<12> × 23057835113017<14> × 396089529902881<15> × 4439770467824561<16> × 13545148572117361<17> × 3577574298489429481<19> × 4122652482568228291<19> × 159781905331924011841<21> × 202254724516962030101<21> × 17551032119981679046729<23> × 416086662911383416679189<24> × 8603427927040724342317061<25> × 3386047926964307416018724773840321<34> × 221090330333352121547996226952843328713749836425081<51> × 41719423553404081179502042048639507844148512359384884961<56> × 63749344828219855592607385550984085877166308818541997672693079961<65> × [16918982542636064013625824205665743935274329684026925442888784402586880516603003801482074206779518031866458444483055176013659621165486833214419866054073266230212986868588794619201<179>] |