Page 39 New factors received January 17, 1986 to January 31, 1986 1639 2, 913+ c248 2389059505456889. c232 Montgomery ecm 1640 2, 915+ c128 288842216366491. c114 Montgomery ecm 1641 2, 919+ c260 4317704341862180531. c242 Montgomery ecm 1642 2, 927+ c185 61339736467.395125276559977. c159 Montgomery ecm(2) 1644 2, 929+ c260 489624750530873. c246 Montgomery ecm 1645 2, 943+ c266 1484493554507. c253 Montgomery ecm 1646 2,1370L c135 3658147051099901. c119 Montgomery ecm 1647 2,1386M c 92 320160637826569.392739971500511407081. p57 Montgomery ecm(2) 1649 2,1918L c229 609014465221. c218 Montgomery ecm 1650 2,2190L c175 250975213261. c163 Montgomery ecm 1651 2,2194M c317 27244396967751097. c301 Montgomery ecm 1652 2,1087- c308 33990250708335239. c292 See # 1720 Dubner ecm 1653 2,2234L c331 250782329104747870229. c311 Baillie p-1 1654 2,1117+ c336 70533063399945787. p319 Baillie p-1 + Montgomery ecm 1655 2, 963+ c192 3156148413859611691. p174 Montgomery ecm 1656 2, 985+ c230 42136857550241.259101467678452891. c199 Montgomery ecm(2) 1658 2, 999+ c181 97377658867. c170 Montgomery ecm 1659 2,1025+ c227 1243595348645401. c211 Montgomery ecm 1660 2,1059+ c203 117598477011619. c189 Montgomery ecm 1661 2,1071+ c152 49697164752429114523. c132 Montgomery ecm 1662 2,1115+ c268 382557003061241. c253 Montgomery ecm 1663 2,1119+ c216 30155506036528513. c200 Montgomery ecm 1664 2,1141+ c274 301870128784337. c259 Montgomery ecm 1665 2,1151+ c324 8057089084163503088491. c302 Montgomery ecm 1666 2,1155+ c137 113571560808091. c123 Montgomery ecm 1667 2,1191+ c214 64339323043. c203 Montgomery ecm + Dubner ecm 1668 2,1199+ c326 447252559596639611. c308 Montgomery ecm 1669 2,1394M c156 192490930402101389. c139 Montgomery ecm 1670 2,1950M c137 1131816004801.108792457407671701. p108 Montgomery ecm(2) 1672 2,1958M c233 57717951413. p222 Montgomery ecm 1673 2,1962M c196 49346313013. c185 Montgomery ecm 1674 2, 429- c 63 1065107717756542892882802586807. p33 Silverman mp-qs 1675 2, 526L c 63 80181854738775471107692957. p37 Silverman mp-qs 1676 3, 393L c 63 105908420015767433134846003. p37 Silverman mp-qs 1677 12, 94+ c 76 1645156433564398201.19141017664453895628642529. p33 Silverman ecm+mp-qs 1679 12, 95+ c 78 251831088886489381. p61 Silverman ecm 1680 12, 98+ c 89 81667460066590930293917. p66 Silverman ecm 1681 12, 100+ c 78 9880627023929801. p62 Silverman ecm 1682 12, 115+ c 72 233290498320197431. p55 See # 1126 Silverman ecm 1683 12, 121+ c 85 353182139722763737. p67 Silverman ecm 1684 2, 550M c 61 1905911178138824081520901. p37 Smith+Wagstaff cfrac 1685 2, 547- c144 157552196128597543991. p124 See # 1507 Suyama ecm 1686 2, 505+ c 68 1025698740064276331. c50 See # 1566 Dubner ecm 1687 2, 505+ c 50 727679956595455269121. p29 See # 1686 Wagstaff cfrac 1688 2, 319+ c 57 25925516494438382632167017. p31 See # 1537 Silverman mp-qs 1689 2, 459+ c 61 33204917536003441. p44 See # 1557 Silverman mp-qs 1690 2, 555+ c 63 38914392714281976571. p44 See # 1581 Silverman mp-qs 1691 12, 116+ c110 112121388095793449. p93 Silverman ecm 1692 5, 171+ c 62 6267476427578502461453809. p37 McCurdy+Wunderlich cfrac 1693 2, 347- c105 14143189112952632419639. p83 Brent ecm 1694 2,1438L c217 980996410232957. c202 Montgomery ecm 1695 2,1966L c296 1431746688753709. c281 Montgomery ecm 1696 2,1974M c167 61706836445096809. p150 Montgomery ecm 1697 2,1982M c294 63488677307778109. c277 Montgomery ecm 1698 2, 699- c128 1917765426328344646895407. c104 Montgomery ecm 1699 2, 715- c145 249602191565465311. c128 Montgomery ecm 1700 2, 765- c105 2109936092650831. c90 Montgomery ecm 1701 2, 779- c183 104003232119. c172 Montgomery ecm 1702 2, 801- c143 1790799748670521. c127 Montgomery ecm 1703 2, 813- c145 152948738791. c133 Montgomery ecm 1704 2, 817- c228 81278478804329. c214 Montgomery ecm 1705 2, 819- c131 2681001528674743. c115 Montgomery ecm 1706 2, 825- c121 702948566745151. c106 Montgomery ecm 1707 2, 831- c142 660284006953.679758314119. p118 Montgomery ecm(2)