n!! + 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 275: | \[275!!+1\] | 22 × 110879 × 892299581 × 21696884861<11> × 26756969549<11> × 403034225950661<15> × [124911514830590288344280179313430343242490217668005658704612634529374097393828465243817221569701215344233809625577881878056338800047069051000378384061810521670647167542751572306578163467585448165483716587967608634819444142322539<228>] |