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Prime Tuple Database
Prime p0= 391466889650676481 starts a
Symmetric tuple of 20 consecutive primes (SPT).
dn: 0 28 18 20 54 46 2 60 28 30 104 30 28 60 2 46 54 20 18 28 (?)
an: 0 28 46 66 120 166 168 228 256 286 390 420 448 508 510 556 610 630 648 676
All 20 integers pn = p0+an = pn-1+dn are prime and there are no other primes in the gaps.
diameter: 676
Found by: Cruncher Pete
db: batch=70, k=20, 28 18 20 54 46 2 60 28 30 104
dn: 0 28 18 20 54 46 2 60 28 30 104 30 28 60 2 46 54 20 18 28 (?)
an: 0 28 46 66 120 166 168 228 256 286 390 420 448 508 510 556 610 630 648 676
All 20 integers pn = p0+an = pn-1+dn are prime and there are no other primes in the gaps.
diameter: 676
Found by: Cruncher Pete
db: batch=70, k=20, 28 18 20 54 46 2 60 28 30 104
| SPT(14) | 391466807942498063 | 0 20 24 158 188 194 216 248 270 276 306 440 444 464 | -81708178418 |
| SPT(14) | 391466815290312821 | 0 30 42 92 138 176 180 248 252 290 336 386 398 428 | -74360363660 |
| SPT(14) | 391466818394657857 | 0 34 46 54 66 82 126 130 174 190 202 210 222 256 | -71256018624 |
| SPT(14) | 391466820587082827 | 0 12 26 56 74 96 126 140 170 192 210 240 254 266 | -69063593654 |
| SPT(14) | 391466833197323573 | 0 54 56 98 104 114 128 156 170 180 186 228 230 284 | -56453352908 |
| TPT(12) | 391466877104397629 | 0 2 12 14 42 44 78 80 132 134 138 140 | -12546278852 |
| TPT(12) | 391466899861530947 | 0 2 24 26 180 182 192 194 234 236 264 266 | 10210854466 |
| TPT(12) | 391466906274852701 | 0 2 150 152 228 230 270 272 276 278 348 350 | 16624176220 |
| SPT(14) | 391466927446620859 | 0 40 54 88 100 120 130 162 172 192 204 238 252 292 | 37795944378 |
| SPT(14) | 391466941897987729 | 0 12 70 88 90 138 204 208 274 322 324 342 400 412 | 52247311248 |
| TPT(12) | 391466945918836547 | 0 2 84 86 102 104 222 224 240 242 282 284 | 56268160066 |
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