Base 19 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 598: | \[{19^{598}-1\over18}\] | 22 × 5 × 47 × 131 × 277 × 313 × 599 × 691 × 2347 × 2531 × 29251 × 176021 × 291331 × 328303 × 133338869 × 16497763013<11> × 1335495402823<13> × 811783746891001<15> × 7729614357613903<16> × 698004686110447691<18> × 24220832594264776783<20> × 156832034288392140949<21> × 248373914344695753194829509<27> × 541551858114145134993948198391<30> × [2007676647599293819015103810024558447135710212505204704511513618801256529406828401905984949422079804793298079832340323469786645002259887934054367380205321025522357186002567052050636551081928968269601739697513000425469123987688731331<232>] × [161189358209047228657454043663327157592068942369034843176388552099056222703479284929038369619715953096842598295219577399541625231798977709051227031696443853242987465833334566217268646788459593539973873455778312159121997678879326039930099851170057653128615099226536045906273747896444644278954558819786338479876188957<315>] |