Status of search for primes k.2ⁿ+1

401 < k < 499 & 1,000,000 < n < 1,500,000

Recently reserved ranges | Reserve or submit a range

Color legend:

completed (X)

being tested

available

k \ n x 1000	1000-1020	1020-1040	1040-1060	1060-1080	1080-1100	1100-1120	1120-1140	1140-1160	1160-1180	1180-1200	1200-1220	1220-1240	1240-1260	1260-1280	1280-1300	1300-1320	1320-1340	1340-1360	1360-1380	1380-1400	1400-1420	1420-1440	1440-1460	1460-1480	1480-1500
401	re	re	re
403	re	re	re
405
407
409
411
413
415
417
419
421
423
425
427
429
431
433
435
437
439
441	X	X	X	X	X	X	X	X	X	X
443
445
447
449
451
453
455
457
459
461
463
465
467
469
471
473
475
477
479
481
483
485
487
489
491
493
495
497
499