Base 25 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 440: | \[{25^{440}-1\over24}\] | 23 × 112 × 13 × 17 × 23 × 41 × 67 × 71 × 89 × 241 × 313 × 521 × 881 × 5281 × 9161 × 11489 × 13729 × 21121 × 25601 × 103511 × 148721 × 245521 × 359041 × 511831 × 929281 × 1458601 × 12207031 × 65628751 × 190295821 × 632133361 × 1030330938209<13> × 16079210384161<14> × 909456847814334401<18> × 2802204291103029121<19> × 25301535619781301761<20> × 71225159567951317923809<23> × 91029014606406186465761<23> × 43117673217579194979701441<26> × 85725237432926769781584361<26> × 9080418348371887359375390001<28> × 10910444855403996246103496881<29> × 13901852309409971054059871521<29> × 30705281217618182630071422092483681<35> × 87530085823642527016184874776489974647524641<44> × 2270022335821931671919407906452434826267020529374760481<55> × 217045423472030410084000646614012813848640728994500965850701090297345582067343453755139134377738561<99> |