ProthRange

Status of search for primes k.2ⁿ+1

601 < k < 699 & 200,000 < n < 800,000

Recently reserved ranges | Reserve or submit a range

Color legend: completed (X) being tested available

k \ n x 1000 200-220 220-240 240-260 260-280 280-300 300-320 320-340 340-360 360-380 380-400 400-420 420-440 440-460 460-480 480-500
601 X X X X X X X X X X X X grid grid grid
603 X X X X X X X X X X X X grid grid grid
605 X X X X X X X X X X X X grid grid grid
607 X X X X X X X X X X X X grid grid grid
609 X X X X X X X X X X X X grid grid grid
611 X X X X X X X X X X X X grid grid grid
613 X X X X X X grid grid X grid X X grid grid grid
615 X X X X X X grid grid X grid X X grid grid grid
617 X X X X X X grid grid X grid X X grid grid grid
619 X X X X X X grid grid X grid X X grid grid grid
621 X X X X X X grid grid X grid X X grid grid grid
623 X X X X X X grid grid X grid X X grid grid grid
625 X X X X X X grid grid X grid X X grid grid grid
627 X X X X X X grid grid X grid X X grid grid grid
629 X X X X X X grid grid X grid X X grid grid grid
631 X X X X X X grid grid X grid X X grid grid grid
633 X X X X X X grid grid X grid X X grid grid grid
635 X X X X X X grid grid X grid X X grid grid grid
637 X X X X X X grid grid X grid X X grid grid grid
639 X X X X X X grid grid X grid X X grid grid grid
641 X X X X X X grid grid X X X X grid grid grid
643 X X X X X X grid grid X X X X grid grid grid
645 X X X X X X grid grid X X X X grid grid grid
647 X X X X X X grid grid X X X X grid grid grid
649 grid grid grid grid grid grid grid grid X X X X grid grid grid
651 grid grid grid grid grid grid grid grid X X grid X grid grid grid
653 grid grid grid grid grid grid grid grid X X grid X grid grid grid
655 grid grid grid grid grid grid grid grid X X grid X grid grid grid
657 grid grid grid grid grid grid grid grid X X grid X grid grid grid
659 grid grid grid grid grid grid grid grid X X grid X grid grid grid
661 grid grid grid grid grid grid grid grid X X X X grid grid grid
663 grid grid grid grid grid grid grid grid X X X X grid grid grid
665 grid grid grid grid grid grid grid grid X X X X grid grid grid
667 grid grid grid grid grid grid grid grid X X X X grid grid grid
669 grid grid grid grid grid grid grid grid X X X X grid grid grid
671 grid grid grid grid grid grid grid grid X X X X grid grid grid
673 grid grid grid grid grid grid grid grid X X X X grid grid grid
675 grid grid grid grid grid grid grid grid X X X X grid grid grid
677 grid grid grid grid grid grid grid grid X X X X grid grid grid
679 grid grid grid grid grid grid grid grid X X X X grid grid grid
681 grid grid grid grid grid grid grid grid X X X X grid grid grid
683 grid grid grid grid grid grid grid grid X X X X grid grid grid
685 grid grid grid grid grid grid grid grid X X X X grid grid grid
687 grid grid grid grid grid grid grid grid X X X X grid grid grid
689 grid grid grid grid grid grid grid grid X X X X grid grid grid
691 grid grid grid grid grid grid grid grid X X X X grid grid grid
693 grid grid grid grid grid grid grid grid X X X X grid grid grid
695 grid grid grid grid grid grid grid grid X X X X grid grid grid
697 grid grid grid grid grid grid grid grid X X X X grid grid grid
699 grid grid grid grid grid grid grid grid X X X X grid grid grid

k \ n x 1000 500-520 520-540 540-560 560-580 580-600 600-620 620-640 640-660 660-680 680-700 700-720 720-740 740-760 760-780 780-800
601 X sh re
603 X sh re
605 X sh re
607 X sh re
609 X sh re
611 sh
613 sh
615 sh
617 sh
619 sh
621
623
625
627
629
631
633
635
637
639
641
643
645
647
649
651 X
653 X
655 X
657 X
659 X
661 X
663 X
665 X
667 X
669 X
671 X
673 X
675 X
677 X
679 X
681 X
683 X
685 X
687 X
689 X
691 X
693 X
695 X
697 X
699 X

Searcher Codes

If you have any questions, you can e-mail Mark Rodenkirch or Ray Ballinger

URL: http://www.prothsearch.net/range09.html
Last Modified: Jun 11, 2008

k \ n x 1000	500-520	520-540	540-560	560-580	580-600	600-620	620-640	640-660	660-680	680-700	700-720	720-740	740-760	760-780	780-800
601	X	sh				re
603	X	sh				re
605	X	sh				re
607	X	sh				re
609	X	sh				re
611		sh
613		sh
615		sh
617		sh
619		sh
621
623
625
627
629
631
633
635
637
639
641
643
645
647
649
651	X
653	X
655	X
657	X
659	X
661	X
663	X
665	X
667	X
669	X
671	X
673	X
675	X
677	X
679	X
681	X
683	X
685	X
687	X
689	X
691	X
693	X
695	X
697	X
699	X

Status of search for primes k.2n+1

601 < k < 699 & 200,000 < n < 800,000

Status of search for primes k.2ⁿ+1