Base 3 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 990: | \[{3^{990}-1\over2}\] | 22 × 7 × 113 × 13 × 19 × 23 × 31 × 37 × 61 × 67 × 181 × 199 × 271 × 331 × 397 × 661 × 757 × 991 × 1321 × 1621 × 2971 × 3851 × 4357 × 4561 × 4951 × 25411 × 50821 × 176419 × 387631 × 659671 × 755551 × 927001 × 1286011 × 3186217 × 35669701 × 337448233 × 2413941289 × 4968781621<10> × 378450588583<12> × 11123788282861<14> × 24472341743191<14> × 560088668384411<15> × 650229042030120136981<21> × 12812432238302009985937<23> × 654293842943765077487715079539511<33> × 4183739978746243239852385111562221<34> × 37073055770742955860149669357943581889942083408919721<53> × 2535780163733034855894105623350204349166417440513207461<55> × 2463695959847156795652548419274400151197734956109716722961<58> |