Base 25 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 690: | \[{25^{690}-1\over24}\] | 2 × 3 × 7 × 11 × 13 × 31 × 41 × 47 × 61 × 71 × 139 × 181 × 277 × 461 × 521 × 601 × 691 × 1381 × 1741 × 2281 × 6211 × 7621 × 8971 × 9161 × 21391 × 31741 × 37951 × 73141 × 118681 × 140761 × 689081 × 1715341 × 2855911 × 29028071 × 66163549 × 69566521 × 70942489 × 253592389 × 824480311 × 5347963681<10> × 17223586571<11> × 22600337281<11> × 27875688121<11> × 33453655481<11> × 242623557361<12> × 332207361361<12> × 598761682261<12> × 8868050880709<13> × 42272797713043<14> × 66988220431117<14> × 403316413944121<15> × 2276933553839041<16> × 6439063521723601<16> × 38522606861373961<17> × 100062970166640331<18> × 2351881115374174051<19> × 43100384224227086881<20> × 228795306617683628161<21> × 1129448349501082362870332521<28> × 17047440383529288172378807321<29> × 163263999306942963967949719201<30> × 233740944633134232457877993341<30> × 5465713352000770660547109750601<31> × 357284241084505251490147974671655271<36> × 38643760302291095856818484806843127030481<41> × 2846817526811185054969317896341452950743033273441<49> × 529958401900871889532705668013589387152384352866888324141<57> × 686727897608959627334715486967213555951453107105148048061030767801<66> × 90276299796161875154782227925720261322804987188389111237355784971962061<71> × 50434912166796507094161247659171464695898783120363948083087401302659807735459270852721<86> |