Table 9 Values of m for which tau(m) is negative prime factors of m+1 m chi(m) tau(m) 2 3 5 7 11 13 17 19 23 29 31 239 5 -21 4 1 1 1439 8 -178 5 2 1 2159 8 -165 4 3 1 4319 11 -159 5 3 1 9239 8 -465 3 1 1 1 1 9359 8 -973 4 2 1 0 0 1 15119 12 -2759 4 3 1 1 17639 10 -3005 3 2 1 2 22679 10 -531 3 4 1 1 23759 10 -3521 4 3 1 0 1 30239 12 -7697 5 3 1 1 48959 12 -5224 6 2 1 0 0 0 1 61199 9 -5931 4 2 2 0 0 0 1 71639 8 -2942 3 2 5 (199) 76319 9 -4117 2 0 1 0 1 (347) 105839 12 -2856 4 3 1 2 113399 15 -21833 3 4 2 1 115919 12 -331 4 2 1 1 0 0 0 0 1 117359 11 -4957 4 2 1 (163) 171359 11 -7596 5 2 1 1 0 0 1 205919 18 -38122 5 2 1 0 1 1 252719 13 -652 4 5 1 0 0 1 268199 7 -12565 3 2 2 (149) 277199 23 -42199 4 2 2 1 1 309959 11 -26560 3 3 1 1 (41) 321551 10 -4050 4 2 0 1 1 0 0 0 0 1 327599 16 -69039 4 2 2 1 0 1 418319 9 -1720 4 2 1 1 (83) 431999 14 -77267 7 3 3 444599 9 -54113 3 2 2 0 0 1 0 1 477359 14 -8280 4 3 1 0 0 1 1 485519 11 -6262 4 1 1 1 0 0 2 533519 14 -36688 4 3 1 0 0 1 0 1 539999 13 -1558 5 3 4 546839 12 -37036 3 2 1 2 0 0 0 0 0 0 1 581399 13 -14029 3 2 2 0 0 0 1 1 619919 17 -90643 4 3 1 1 (41) 628559 9 -14297 4 4 1 (97) 692999 16 -126957 3 2 3 1 1 694799 10 -17645 4 2 2 (193) 699839 12 -28275 6 7 1 727559 9 -7640 3 2 1 (43)(47) 745919 12 -51271 6 2 1 1 (37) 762839 8 -20645 3 2 1 0 0 1 (163) 810719 9 -65899 5 2 1 (563) 951839 12 -77022 5 2 1 (661) 966239 12 -175475 5 2 1 0 1 (61) 979439 10 -3885 4 1 1 1 1 (53) 1000439 12 -150121 3 2 1 1 (397) 1002959 9 -121593 4 2 1 1 (199) 1013759 12 -40421 11 2 1 0 1 1067039 18 -281069 5 3 1 0 0 1 0 1 1098719 10 -25496 5 2 1 1 (109) 1107359 8 -36082 5 2 1 (769) 1261799 6 -10289 3 2 2 (701) 1369871 9 -88040 4 4 0 1 (151) 1375199 8 -99643 5 2 2 (191) 1391039 21 -184435 6 3 1 1 0 0 0 0 1 1417919 10 -3638 6 1 1 1 (211) 1525679 11 -43290 4 2 1 0 0 1 (163) 1625399 16 -266125 3 3 2 1 (43) 1659839 12 -104715 6 1 5 1 0 1 0 1 1700159 17 -123626 6 1 1 1 1 0 0 0 1 1721159 6 -43985 3 2 1 1 (683) 1733759 15 -114004 7 2 1 1 (43) 1760039 8 -177906 3 2 1 (4889) 1857239 15 -265617 3 2 1 1 1 (67)