Base 5 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 689: | \[{5^{689}-1\over4}\] | 8269 × 855739 × 305175781 × 5960555749<10> × 17154094481<11> × 44115428118841<14> × 27145365052629449<17> × 1161572125251542929159<22> × 506682198995827346867283902839<30> × [62546937399640764467529801399379875326398031946669090995268080248512925035981728886421152351366602806308683035158559190415316656511157037089334522112505347279678346783037644446444581841593696303409900127531530606232048334990229245189766166499673623509104545583040769872914484992658704660971486374208143164351153632846745269550229019421242759714897078760378472791<362>] |