Base 4 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 873: | \[{4^{873}-1\over3}\] | 32 × 7 × 19 × 73 × 971 × 1553 × 1747 × 11447 × 22699 × 25609 × 31817 × 132697 × 272959 × 9449353 × 2065304407 × 5434876633<10> × 7969524463<10> × 5636963037465601<16> × 581546606903256979<18> × 921446320166308603<18> × 1100876018364883721<19> × 99695503427255026561<20> × 13842607235828485645766393<26> × 1170711644777651877659556633665719<34> × 435350962502860533102854399065360163787224236964302573321<57> × 17457153953951338122987413389703589474828214992499033825250890363965855965415301099916162659<92> × 21698965559461003965073675349879690425070563888163817782536115817713874113945263812490629925867658076950469188382253139569022738861697946929865939667767<152> |