Base 13 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 490: | \[{13^{490}-1\over12}\] | 2 × 73 × 11 × 29 × 71 × 211 × 491 × 1471 × 1667 × 2411 × 22079 × 30941 × 435709 × 654221 × 759641 × 5229043 × 22896329 × 54461639 × 55848731 × 3357897971 × 28082195177<11> × 16566575194331<14> × 707179356161321<15> × 1937261271540841<16> × 16049801116294358590175881<26> × 7502160021223356249745536301<28> × 1303929619014323295195519453212113<34> × 26751236208107865470032096864570607584243411<44> × 141552708562038259419184404996996217152272473868881<51> × 1302176948455088316869472183914253216870784080479752275110983495501001727562617168876058951<91> × 66673359380632737310974953898358059241339055689400520273468214361676163604543648495360641855626320718551870607913163145308201154306751<134> |