Factorization results contributed February, 2026

Table of contents 目次

February 22, 2026 2026 年 2 月 22 日
- Thomas Kozlowski
- Bob Backstrom
- Ignacio Santos
- Dmitry Domanov
February 21, 2026 2026 年 2 月 21 日
- Bob Backstrom
- Thomas Kozlowski
- Erik Branger
February 20, 2026 2026 年 2 月 20 日
- Thomas Kozlowski
- Bob Backstrom
- Ignacio Santos
- ff cat
February 19, 2026 2026 年 2 月 19 日
- Thomas Kozlowski
February 18, 2026 2026 年 2 月 18 日
- Bob Backstrom
- Thomas Kozlowski
- Ignacio Santos
- Dmitry Domanov
February 17, 2026 2026 年 2 月 17 日
- Thomas Kozlowski
- ivelive
- Ignacio Santos
February 16, 2026 2026 年 2 月 16 日
- Thomas Kozlowski
- Bob Backstrom
- Jason Parker-Burlingham
- Ignacio Santos
February 15, 2026 2026 年 2 月 15 日
- Thomas Kozlowski
- Bob Backstrom
February 14, 2026 2026 年 2 月 14 日
- Thomas Kozlowski
- Erik Branger
- Bob Backstrom
February 13, 2026 2026 年 2 月 13 日
- Thomas Kozlowski
February 12, 2026 2026 年 2 月 12 日
- Thomas Kozlowski
- Bob Backstrom
February 11, 2026 2026 年 2 月 11 日
- Thomas Kozlowski
- Seth Troisi
- Bob Backstrom
- Ignacio Santos
February 10, 2026 2026 年 2 月 10 日
- Thomas Kozlowski
- Ignacio Santos
- Seth Troisi
February 9, 2026 2026 年 2 月 9 日
- Thomas Kozlowski
- Bob Backstrom
- ebina
- Erik Branger
February 8, 2026 2026 年 2 月 8 日
- Thomas Kozlowski
- Seth Troisi
- Dmitry Domanov
- Bob Backstrom
February 7, 2026 2026 年 2 月 7 日
- Thomas Kozlowski
- Bob Backstrom
- Erik Branger
February 6, 2026 2026 年 2 月 6 日
- Thomas Kozlowski
- Bob Backstrom
- Erik Branger
February 5, 2026 2026 年 2 月 5 日
- Thomas Kozlowski
- Bob Backstrom
- Ignacio Santos
February 4, 2026 2026 年 2 月 4 日
- Thomas Kozlowski
- Ignacio Santos
- Dmitry Domanov
- Bob Backstrom
- Erik Branger
February 3, 2026 2026 年 2 月 3 日
- Thomas Kozlowski
- Bob Backstrom
- Erik Branger
February 2, 2026 2026 年 2 月 2 日
- Bob Backstrom
- Thomas Kozlowski
- Erik Branger
- Dmitry Domanov
February 1, 2026 2026 年 2 月 1 日
- Thomas Kozlowski
- Bob Backstrom

February 22, 2026 2026 年 2 月 22 日

February 21, 2026 2026 年 2 月 21 日

Bob Backstrom

86×10²⁷¹+139 : c146 = P43 × P103

Thomas Kozlowski

17×10²³⁷-53 : c224 = P47 × P178
17×10²³⁸-53 : c188 = P43 × c145
25×10²⁹⁰+173 : c229 = P45 × c184
67×10²⁷⁴-319 : c250 = P47 × P204
85×10²⁷¹+329 : c246 = P42 × c205
8×10²²⁹-9 : c168 = P42 × c127
17×10²⁴⁵-53 : c245 = P42 × c203

Erik Branger

85×10²²²+149 : c204 = P52 × P152

February 20, 2026 2026 年 2 月 20 日

Thomas Kozlowski

85×10²⁴⁹+329 : c244 = P42 × P203
19×10²⁶⁶+113 : c239 = P40 × P199
86×10²⁷³+319 : c264 = P45 × c219
85×10²⁵⁵+329 : c240 = P45 × c196
32×10²⁹⁶+319 : c297 = P57 × c240
17×10²³²-53 : c193 = P43 × c151
19×10²⁷²+113 : c193 = P47 × P146
85×10²²⁶-139 : c186 = P41 × P145

Bob Backstrom

17×10²⁵²-113 : c150 = P46 × P105
11×10²²⁷+43 : c227 = P52 × P57 × P119
163×10²¹⁷-19 : c200 = P62 × P138

Ignacio Santos

17×10²⁴⁶-113 : c158 = P48 × P111

ff cat

9×10²⁶²+7 : c146 = P39 × P107

February 19, 2026 2026 年 2 月 19 日

Thomas Kozlowski

17×10²⁸⁹-113 : c262 = P44 × c218
85×10²³⁸+329 : c233 = P44 × P190
67×10²⁴⁶-319 : c198 = P45 × c153
17×10²⁹³-113 : c244 = P42 × P202
85×10²³⁹+329 : c215 = P45 × P171
86×10²⁶⁷+319 : c250 = P44 × P206

February 18, 2026 2026 年 2 月 18 日

Bob Backstrom

61×10²⁸²-529 : c149 = P48 × P101
13×10²¹⁷-73 : c200 = P65 × P136

Thomas Kozlowski

17×10²⁷⁶-113 : c225 = P50 × P176
25×10²⁶⁵+173 : c241 = P44 × c198
19×10²²⁹+113 : c199 = P42 × c157

Ignacio Santos

5×10²⁸³+139 : c156 = P45 × c111

Dmitry Domanov

17×10²⁵⁷-143 : c125 = P54 × P72

February 17, 2026 2026 年 2 月 17 日

Thomas Kozlowski

17×10²⁶⁰-113 : c231 = P43 × c189
28×10²⁸³+113 : c231 = P42 × c189
19×10²⁷⁸+53 : c231 = P41 × c191
28×10²⁸⁴+113 : c272 = P45 × c227
86×10²⁷¹+139 : c193 = P48 × c146
25×10²⁴⁶+173 : c228 = P43 × P186
664×10²¹⁴-79 : c172 = P48 × P125
25×10²⁴⁸+173 : c225 = P46 × P179
28×10²⁹⁰+113 : c228 = P44 × c185
86×10²⁹²+139 : c273 = P43 × c230
28×10²⁹³+113 : c232 = P46 × c186
86×10²⁹⁴+139 : c294 = P47 × c248

ivelive

88×10²⁷²-619 : c216 = P46 × c171

Ignacio Santos

43×10²⁵⁷+119 : c164 = P49 × P115

February 16, 2026 2026 年 2 月 16 日

Thomas Kozlowski

28×10²⁵⁹+113 : c256 = P39 × P217
9×10²⁶⁷+7 : c233 = P48 × c186
93×10²⁵⁶-1 : c206 = P41 × P165
93×10²⁵⁹-1 : c216 = P44 × P172
17×10²⁴⁶-113 : c210 = P53 × c158
28×10²⁶⁶+113 : c231 = P44 × c187
28×10²⁶⁹+113 : c214 = P43 × P172
25×10²¹²+173 : c189 = P45 × P145
17×10²⁵²-113 : c195 = P45 × c150
28×10²⁷³+113 : c241 = P42 × c200
25×10²³³+173 : c220 = P40 × P181
85×10²⁹⁰-229 : c262 = P45 × P217
22×10²⁹²+173 : c271 = P48 × c224

Bob Backstrom

2×10²³⁴-1 : c221 = P79 × P143
25×10²³¹+83 : c150 = P69 × P82
5×10²²⁵+6 : c210 = P51 × P160

Jason Parker-Burlingham

34×10²⁷⁶-619 : c232 = P73 × P159

Ignacio Santos

28×10²⁶²+53 : c163 = P52 × P111

February 15, 2026 2026 年 2 月 15 日

Thomas Kozlowski

19×10²⁹³-43 : c209 = P45 × c165
17×10²¹³-113 : c153 = P43 × P110
22×10²⁷⁷+173 : c220 = P55 × c166
25×10²⁹²+83 : c221 = P41 × c180
9×10²⁵⁹+7 : c209 = P46 × P163
19×10²⁴²+53 : c177 = P51 × P127

Bob Backstrom

25×10²⁴⁶+83 : c148 = P67 × P81

February 14, 2026 2026 年 2 月 14 日

Thomas Kozlowski

25×10²⁷¹+83 : c209 = P42 × P168
25×10²⁷²+83 : c229 = P42 × c187
22×10²⁵²+173 : c211 = P44 × P168
86×10²⁸⁶+139 : c222 = P42 × c180
17×10²⁹¹-143 : c278 = P45 × c234
5×10²⁸³+139 : c202 = P46 × c156
17×10²³⁹-143 : c164 = P43 × P122
17×10²⁵⁷-143 : c171 = P47 × c125
19×10²⁸⁹+23 : c235 = P49 × c187
19×10²⁹⁰+23 : c260 = P46 × P215
9×10²⁶²+7 : c185 = P40 × c146
25×10²⁸⁰+83 : c267 = P44 × c224
22×10²⁶⁴+173 : c230 = P46 × c184
28×10²⁹²+53 : c264 = P44 × P221
19×10²⁹⁷+23 : c290 = P39 × P251

Erik Branger

Bob Backstrom

74×10²¹⁸+79 : c137 = P67 × P71
19×10²¹⁷+89 : c200 = P97 × P104

February 13, 2026 2026 年 2 月 13 日

Thomas Kozlowski

17×10²⁷³-143 : c224 = P43 × c182
86×10²⁶⁷+139 : c211 = P49 × P163
25×10²⁵⁵+83 : c212 = P47 × P165
86×10²⁷⁰+139 : c201 = P48 × c154
86×10²⁷¹+139 : c238 = P46 × c193
9×10²⁵⁹+7 : c252 = P44 × c209
86×10²⁷⁴+139 : c231 = P43 × c188
86×10²⁷⁵+139 : c249 = P39 × P210
86×10²⁷⁷+139 : c218 = P42 × P176
17×10²⁸⁴-143 : c268 = P45 × c223
86×10²⁸⁰+139 : c271 = P40 × P232

February 12, 2026 2026 年 2 月 12 日

Thomas Kozlowski

25×10²³¹+83 : c192 = P43 × c150
17×10²⁴⁸-143 : c210 = P44 × c167
17×10²⁵⁷-143 : c215 = P44 × c171
86×10²⁴²+139 : c194 = P47 × P147
86×10²⁴⁷+139 : c235 = P42 × c193
25×10²⁴⁶+83 : c196 = P49 × c148
86×10²⁵⁸+139 : c258 = P44 × P215
86×10²⁶¹+139 : c251 = P41 × c210
28×10²⁶⁰+53 : c210 = P51 × P160
28×10²⁶²+53 : c204 = P42 × c163

Bob Backstrom

19×10²¹⁴+89 : c198 = P83 × P115

February 11, 2026 2026 年 2 月 11 日

Thomas Kozlowski

17×10²²⁸-143 : c194 = P45 × P150
85×10²⁷⁷-229 : c275 = P44 × c231
17×10²³²-143 : c212 = P46 × P167
17×10²³⁹-143 : c205 = P41 × c164
29×10²⁵⁹-83 : c254 = P45 × c210
17×10²⁴³-143 : c222 = P43 × c180
17×10²⁴⁵-143 : c198 = P44 × P154

Seth Troisi

61×10²⁸²-529 : c198 = P49 × c149

Bob Backstrom

16×10²²³+173 : c214 = P83 × P132

Ignacio Santos

55×10²³⁵+269 : c160 = P44 × P117

February 10, 2026 2026 年 2 月 10 日

Thomas Kozlowski

86×10²⁹⁷-239 : c259 = P49 × P211
17×10²¹²-143 : c205 = P40 × P166
22×10²⁷⁶-13 : c243 = P42 × P202
28×10²¹⁹+53 : c214 = P47 × c168
89×10²⁵²-539 : c221 = P40 × P182
74×10²⁹⁸+619 : c243 = P44 × c200
86×10²²⁷+139 : c217 = P45 × P172
22×10²⁸⁰-13 : c269 = P45 × c224
17×10²²⁶-143 : c204 = P41 × P164
86×10²³¹+139 : c206 = P47 × P160

Ignacio Santos

74×10²⁶¹-119 : c160 = P46 × P114

Seth Troisi

89×10²⁵⁷-449 : c197 = P57 × P141

February 9, 2026 2026 年 2 月 9 日

Thomas Kozlowski

93×10²⁸⁹-1 : c227 = P45 × P183
5×10²⁹⁴+139 : c269 = P38 × P232
85×10²⁷⁴-229 : c223 = P42 × P182
9×10²⁵³+7 : c223 = P48 × c175
19×10²³³+23 : c218 = P43 × P175
86×10²⁹⁰-239 : c263 = P48 × P216
86×10²⁹¹-239 : c254 = P45 × P210
86×10²⁹⁴-239 : c231 = P45 × P187
86×10²⁹⁵-239 : c277 = P47 × c231
5×10²⁵³+319 : c202 = P43 × c159
93×10²⁹⁷-1 : c221 = P38 × P183
89×10²⁴⁵-539 : c233 = P52 × c182

Bob Backstrom

17×10²¹⁷-23 : c200 = P43 × P157
6×10²¹⁷+5 : c200 = P89 × P111
89×10²³⁷-539 : c135 = P49 × P86

ebina

43×10²²⁷-79 : c212 = P50 × P163

Erik Branger

17×10²⁴⁰+43 : c196 = P68 × P129
83×10²²²+169 : c209 = P98 × P111

February 8, 2026 2026 年 2 月 8 日

Thomas Kozlowski

93×10²⁷⁹-1 : c232 = P39 × c194
74×10²⁷⁷+619 : c216 = P56 × c160
19×10²⁹⁰-43 : c279 = P43 × c236
19×10²⁹³-43 : c248 = P40 × c209
93×10²⁸⁴-1 : c271 = P41 × c230
22×10²²⁸-13 : c219 = P42 × c177
5×10²⁸³+139 : c242 = P40 × c202
74×10²⁸²+619 : c242 = P45 × c198
5×10²⁸⁴+139 : c283 = P45 × P239
19×10²²³+23 : c194 = P50 × P145

Seth Troisi

28×10²⁴³+113 : c190 = P50 × P141
17×10²⁶⁹-539 : c191 = P44 × P148
74×10²¹⁸+79 : c193 = P56 × c137

Dmitry Domanov

86×10²¹⁵-239 : c110 = P50 × P60

Bob Backstrom

67×10²¹⁷+419 : c200 = P93 × P107

February 7, 2026 2026 年 2 月 7 日

Thomas Kozlowski

74×10²⁶⁹+619 : c228 = P43 × P186
93×10²⁷²-1 : c240 = P47 × c194
22×10²⁹²-73 : c256 = P43 × c213
19×10²²³-43 : c168 = P45 × P124
655×10²³⁰-79 : c179 = P44 × P136
5×10²⁷²+139 : c261 = P43 × c218

Bob Backstrom

83×10²⁶¹+619 : c150 = P47 × P103
16×10²¹⁴+173 : c201 = P59 × P143

Erik Branger

92×10²²²-1 : c201 = P61 × P141

February 6, 2026 2026 年 2 月 6 日

Thomas Kozlowski

74×10²⁴⁵+619 : c188 = P44 × P144
86×10²⁵⁹-239 : c230 = P47 × P184
29×10²⁴⁵-83 : c173 = P41 × P133
22×10²⁶⁷-73 : c217 = P48 × c169
89×10²³⁷-539 : c179 = P45 × c135
22×10²⁶⁹-73 : c193 = P41 × P152
86×10²⁶³-239 : c194 = P41 × P153
22×10²⁷⁴-73 : c235 = P47 × c188
86×10²⁶⁷-239 : c249 = P44 × P205
93×10²⁵⁶-1 : c246 = P40 × c206
74×10²⁵⁷+619 : c220 = P42 × P179
93×10²⁵⁹-1 : c256 = P41 × c216
93×10²⁶⁰-1 : c244 = P43 × c202
86×10²⁷³-239 : c261 = P48 × c214

Bob Backstrom

9×10²²⁹+5 : c230 = P112 × P118
11×10²¹⁵-83 : c200 = P46 × P66 × P89
86×10²⁵¹-419 : c138 = P65 × P74
74×10²⁴³+259 : c140 = P55 × P86

Erik Branger

17×10²⁴⁰-143 : c208 = P98 × P111

February 5, 2026 2026 年 2 月 5 日

Thomas Kozlowski

93×10²²⁴-1 : c188 = P48 × P140
74×10²²⁶+619 : c210 = P43 × c167
22×10²⁵⁶-73 : c233 = P43 × c190
86×10²⁵⁴-239 : c194 = P41 × P154
19×10²⁶⁶-43 : c236 = P43 × c194
86×10²⁵⁷-239 : c215 = P44 × c172

Bob Backstrom

13×10²¹⁶+419 : c205 = P98 × P108

Ignacio Santos

83×10²⁶⁶+529 : c178 = P43 × P135
9×10²⁷¹-8 : c186 = P40 × P146
655×10²²⁶-79 : c147 = P38 × P109
83×10²⁵⁶+529 : c145 = P43 × P103

February 4, 2026 2026 年 2 月 4 日

Thomas Kozlowski

5×10²⁸⁰-239 : c252 = P43 × P209
22×10²⁴²-73 : c224 = P49 × c176
83×10²⁹¹+619 : c233 = P46 × P188
86×10²⁹⁸-419 : c291 = P41 × c251
86×10²¹⁵-239 : c162 = P52 × c110
83×10²⁹³+619 : c275 = P38 × c237

Ignacio Santos

83×10²⁵⁷+529 : c159 = P45 × P114

Dmitry Domanov

62×10²⁶⁷-359 : c183 = P49 × P135

Bob Backstrom

59×10²²⁷+229 : c228 = P45 × P54 × P129

Erik Branger

9×10²²²+8 : c182 = P66 × P117

February 3, 2026 2026 年 2 月 3 日

Thomas Kozlowski

5×10²⁶⁶-239 : c257 = P49 × P209
19×10²²³-43 : c211 = P44 × c168
19×10²⁴⁰-43 : c229 = P44 × c185

Bob Backstrom

74×10²¹⁷-119 : c200 = P51 × P149

Erik Branger

509×10²⁴⁰-59 : c223 = P72 × P152

February 2, 2026 2026 年 2 月 2 日

Bob Backstrom

74×10²³³-119 : c148 = P46 × P102

Thomas Kozlowski

74×10²⁶⁶+439 : c262 = P46 × c217
89×10²¹⁷-539 : c172 = P48 × P124
19×10²⁹⁵-73 : c256 = P43 × P213
655×10²⁸³-79 : c265 = P44 × P222
655×10²⁸⁵-79 : c218 = P36 × c183
86×10²⁷³-419 : c263 = P50 × c213
5×10²⁶¹-239 : c218 = P39 × c180
83×10²⁵⁸+619 : c235 = P44 × c192
83×10²⁶¹+619 : c190 = P41 × c150
83×10²⁶⁴+619 : c184 = P46 × P138
83×10²⁶⁵+619 : c203 = P44 × P159

Erik Branger

791×10²²²-89 : c208 = P47 × P162

Dmitry Domanov

88×10²⁹⁴-79 : c283 = P40 × c243

February 1, 2026 2026 年 2 月 1 日

Thomas Kozlowski

655×10²⁶⁶-79 : c231 = P46 × c186
86×10²⁵¹-419 : c177 = P39 × c138
74×10²⁵⁹+439 : c210 = P44 × c166
85×10²⁶²-229 : c219 = P41 × P179
19×10²⁸⁹-73 : c260 = P44 × c216
86×10²⁶⁰-419 : c192 = P49 × P143

Bob Backstrom

373×10²²⁴-49 : c210 = P48 × P163
73×10²⁴⁰+719 : c150 = P67 × P83