Factors - vjudeu/curves1000 GitHub Wiki
Factorizing p-1 and n-1 values on elliptic curves:
+------+--------+----------------------------------------------------------------------------------------------------------------+
| bits | factor | numbers |
+------+--------+----------------------------------------------------------------------------------------------------------------+
| 256 | p-1 | 2 * 3 * 7 * 13441 * 205115282021455665897114700593932402728804164701536103180137503955397371 |
| | n-1 | 2^6 * 3 * 149 * 631 * 107361793816595537 * 174723607534414371449 * 341948486974166000522343609283189 |
| | gcd | 6 |
+------+--------+----------------------------------------------------------------------------------------------------------------+
| 255 | p-1 | 2 * 3^2 * 23 * 139845518402555791574361093005661724460470995972995850289199980685875047943 |
| | n-1 | 2^2 * 3^2 * 569 * 1361 * 2593 * 800891132531517485032814605941343079868232454636112827936901178379 |
| | gcd | 18 |
+------+--------+----------------------------------------------------------------------------------------------------------------+
| 254 | p-1 | 2^2 * 3^5 * 167 * 1481 * 159194605214647650089399383 * 756402155499881077520872605916604744779121 |
| | n-1 | 2 * 3 * 5623 * 67057 * 1132544111293037 * 11297967430713295808175515051750169386282697833400883 |
| | gcd | 6 |
+------+--------+----------------------------------------------------------------------------------------------------------------+
| 253 | p-1 | 2 * 3^4 * 89345747868299533505841809420283879516412025204969571018099987660400285361 |
| | n-1 | 2^2 * 3^4 * 7 * 2243 * 13219 * 20551 * 898153 * 28797146347300545217 * 404934928173700553300341291429690243 |
| | gcd | 162 |
+------+--------+----------------------------------------------------------------------------------------------------------------+
| 252 | p-1 | 2 * 3^2 * 131 * 14997589 * 204641475611015959118489610823638476653414149822319135205818058653 |
| | n-1 | 2 * 3^2 * 29 * 467 * 257003 * 1375894795207 * 83955297145889635540320246766639893771804397549183003 |
| | gcd | 18 |
+------+--------+----------------------------------------------------------------------------------------------------------------+
| 251 | p-1 | 2 * 3 * 19 * 31741252532159044798128011241416641407146377375449716019588153510903422833 |
| | n-1 | 2^2 * 3 * 29 * 31 * 39509 * 2719081 * 15655609 * 16065172451 * 49866111563 * 248948164616909554103203537926277 |
| | gcd | 6 |
+------+--------+----------------------------------------------------------------------------------------------------------------+
| 250 | p-1 | 2 * 3^2 * 28123 * 309433 * 26484372082127 * 12560284600961898304675903 * 34722339197475969360076339 |
| | n-1 | 2^2 * 3^2 * 199 * 2741 * 92137050036608594957707211355775011917705044124561202103459635208603 |
| | gcd | 18 |
+------+--------+----------------------------------------------------------------------------------------------------------------+
| 249 | p-1 | 2 * 3 * 5^2 * 13 * 3565213 * 130650159923 * 995953086544216707715714489106171871835282079534925929 |
| | n-1 | 2 * 3 * 5^2 * 1693 * 16817069 * 211821674581664136285211130032174812102806478919799767441232651 |
| | gcd | 150 |
+------+--------+----------------------------------------------------------------------------------------------------------------+
| 248 | p-1 | 2 * 3^3 * 41 * 17868903201029 * 1657780247799982833773 * 6896622443897894981289433697602354789 |
| | n-1 | 2 * 3^2 * 5^2 * 55457 * 1799617 * 15077532719 * 667974174546811262810191484865333527981756872041113 |
| | gcd | 18 |
+------+--------+----------------------------------------------------------------------------------------------------------------+
| 247 | p-1 | 2^2 * 3^2 * 7 * 13 * 86440624981 * 3115547026147 * 256337902747857373830499021662818374661132198851 |
| | n-1 | 2^3 * 3^3 * 7 * 881 * 2857237 * 3417437402161 * 17387390010872716627769349740955022069331166687467 |
| | gcd | 252 |
+------+--------+----------------------------------------------------------------------------------------------------------------+
| 246 | p-1 | 2 * 3 * 7 * 13 * 33613 * 3375149 * 1825517771142940708521655283786938074912570504640525614355609 |
| | n-1 | 2 * 3 * 1627 * 6309389 * 433975765569602519 * 5186994641886608429 * 815589354301748192617999469 |
| | gcd | 6 |
+------+--------+----------------------------------------------------------------------------------------------------------------+
| 245 | p-1 | 2^2 * 3 * 653 * 7215301949069461274459612049996604454629847460441527138832490867415627 |
| | n-1 | 2^2 * 3^3 * 1637 * 135601 * 13560558617321 * 3343193012988800929609 * 52020506889093313866779191549 |
| | gcd | 12 |
+------+--------+----------------------------------------------------------------------------------------------------------------+
| 244 | p-1 | 2 * 3 * 7^3 * 30498095009 * 450402568574899474355632373640430897443018012797070440561581 |
| | n-1 | 2^2 * 3 * 7 * 1783 * 188750587803155124277787303447150977859181619521582124898883620098643 |
| | gcd | 42 |
+------+--------+----------------------------------------------------------------------------------------------------------------+
| 243 | p-1 | 2 * 3 * 276810109 * 95262145213564159 * 89337828581523208741961638534057799238455765071 |
| | n-1 | 2 * 3 * 7 * 17 * 4159 * 12865920972277753 * 18228483176818947679 * 20295997605377463875767834165861 |
| | gcd | 6 |
+------+--------+----------------------------------------------------------------------------------------------------------------+
| 242 | p-1 | 2 * 3 * 7 * 47 * 4327 * 4737273529 * 27390993490039 * 6376592454833038388842379976900914207794189 |
| | n-1 | 2 * 3 * 7 * 168271149026512793293647381023135096750477247514916332052523653691728659 |
| | gcd | 42 |
+------+--------+----------------------------------------------------------------------------------------------------------------+
| 241 | p-1 | 2 * 3 * 73^2 * 157 * 311 * 1439 * 2824724162677964617714783 * 556845999718748432165900427613422857 |
| | n-1 | 2 * 3^4 * 5 * 11 * 13 * 29347 * 8902130576627 * 195074513069926541 * 598617894191269641310430164588847 |
| | gcd | 6 |
+------+--------+----------------------------------------------------------------------------------------------------------------+
| 240 | p-1 | 2 * 3^2 * 5^2 * 41 * 293 * 367 * 92893 * 98825347 * 97010237445516620857687048983480326298261274815527 |
| | n-1 | 2^3 * 3 * 5 * 13 * 41 * 4700526191 * 339611867462082698916371 * 17304584243826163311030725098121909 |
| | gcd | 1230 |
+------+--------+----------------------------------------------------------------------------------------------------------------+
| 239 | p-1 | 2 * 3^2 * 13 * 61 * 139 * 947 * 23680967 * 21926180260813 * 587677854514289977 * 1540837195496624074505059 |
| | n-1 | 2^3 * 3^4 * 911129 * 1335989 * 16267562393839499747699 * 68847587151877263941963610593079523 |
| | gcd | 18 |
+------+--------+----------------------------------------------------------------------------------------------------------------+
| 238 | p-1 | 2 * 3^2 * 5^2 * 103 * 1013 * 80209 * 819377420363 * 2994955469985435150769 * 47794984039077954847971191 |
| | n-1 | 2 * 3^4 * 11 * 23 * 1459 * 20921 * 353073970076400618812960842465202624571962607833215477857683 |
| | gcd | 18 |
+------+--------+----------------------------------------------------------------------------------------------------------------+
| 237 | p-1 | 2 * 3 * 317 * 1395905175647 * 83184525231631664953780543641028123997271051698640424729 |
| | n-1 | 2 * 3 * 7 * 19 * 257 * 5287519 * 10055871827 * 20253556114080488767041705110302884684647912809807 |
| | gcd | 6 |
+------+--------+----------------------------------------------------------------------------------------------------------------+
| 236 | p-1 | 2 * 3^2 * 7 * 839 * 627349 * 123950283190414411582477568773 * 13433517250489670897847446084317 |
| | n-1 | 2 * 3 * 7 * 2197246627 * 133552330027 * 8959822590656080099821635158612191094837418570921 |
| | gcd | 42 |
+------+--------+----------------------------------------------------------------------------------------------------------------+