Base 20 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 365: | \[{20^{365}-1\over19}\] | 11 × 61 × 251 × 92419 × 6774401 × 6412324721641<13> × 17779512531871<14> × 636574672199039803231<21> × 22094000122734511703229431<26> × 965606392793281443322285291<27> × 17069359650081206674726921272389941<35> × 27647955665502984111424738575033225285142728898240663733946570641<65> × 8388017164299528473137529640945135276336333707655875659563939090886233451999<76> × 11116152383331273250472773196217850761334442312853344352082667642712111271378058071<83> × 55057077871841068653592958226038928813566214002483227221323851976458670932622241955387444672064462411<101> |