Base 13 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 638: | \[{13^{638}-1\over12}\] | 2 × 7 × 23 × 59 × 419 × 859 × 1277 × 1741 × 1973 × 2843 × 3191 × 3539 × 15313 × 18041 × 1058443 × 128011456717<12> × 510502730123<12> × 8546789918171<13> × 16397414286709<14> × 14037174800445743<17> × 846041103974872866961<21> × 6428231657169394351137985039<28> × [166889333058743653823971698732004705536592636534367771868819166445625365655025246310566096357473108008810644938767539888274878015725056313577618996271158617107967245817952604496233376159130121588112322430026699792448336202383585471206087237902880673454868605594883<264>] × [1259089303687396758031675032621345105771708709177857670333789545472074476750530837779167092425260196145820781591240550009811771211035307791778190301924294329153398527086035398883325741933364005838553235014632058564311401455464961933266942962620274304396306554706783795543667160499589791689<289>] |