Talk:Unprimeable numbers: Difference between revisions
Why is the first unprimeable ending in digit '1' 595631, and not 294001?
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(Why is the first unprimeable ending in digit '1' 595631, and not 294001?) |
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: Yuppers, I found the problem in the program, it was an incorrect comparison operator. The program has been fixed, and the output updated. Thanks for finding the omission. -- [[User:Gerard Schildberger|Gerard Schildberger]] ([[User talk:Gerard Schildberger|talk]]) 05:16, 2 January 2020 (UTC)
== Why is the first unprimeable ending in digit '1' 595631, and not 294001? ==
I'm looking at the output of debug which seems to suggests that 294,001 is unprimeable. And it is less than the value given by everyone else. Which of these is prime? What have I missed?
--[[User:Tim-brown|Tim-brown]] ([[User talk:Tim-brown|talk]]) 17:52, 19 March 2020 (UTC)
<pre>
(94001 (+ 0 (* 0 100000) 94001) prime? #f)
(194001 (+ 0 (* 1 100000) 94001) prime? #f)
(394001 (+ 0 (* 3 100000) 94001) prime? #f)
(494001 (+ 0 (* 4 100000) 94001) prime? #f)
(594001 (+ 0 (* 5 100000) 94001) prime? #f)
(694001 (+ 0 (* 6 100000) 94001) prime? #f)
(794001 (+ 0 (* 7 100000) 94001) prime? #f)
(894001 (+ 0 (* 8 100000) 94001) prime? #f)
(994001 (+ 0 (* 9 100000) 94001) prime? #f)
(204001 (+ 200000 (* 0 10000) 4001) prime? #f)
(214001 (+ 200000 (* 1 10000) 4001) prime? #f)
(224001 (+ 200000 (* 2 10000) 4001) prime? #f)
(234001 (+ 200000 (* 3 10000) 4001) prime? #f)
(244001 (+ 200000 (* 4 10000) 4001) prime? #f)
(254001 (+ 200000 (* 5 10000) 4001) prime? #f)
(264001 (+ 200000 (* 6 10000) 4001) prime? #f)
(274001 (+ 200000 (* 7 10000) 4001) prime? #f)
(284001 (+ 200000 (* 8 10000) 4001) prime? #f)
(290001 (+ 290000 (* 0 1000) 1) prime? #f)
(291001 (+ 290000 (* 1 1000) 1) prime? #f)
(292001 (+ 290000 (* 2 1000) 1) prime? #f)
(293001 (+ 290000 (* 3 1000) 1) prime? #f)
(295001 (+ 290000 (* 5 1000) 1) prime? #f)
(296001 (+ 290000 (* 6 1000) 1) prime? #f)
(297001 (+ 290000 (* 7 1000) 1) prime? #f)
(298001 (+ 290000 (* 8 1000) 1) prime? #f)
(299001 (+ 290000 (* 9 1000) 1) prime? #f)
(294101 (+ 294000 (* 1 100) 1) prime? #f)
(294201 (+ 294000 (* 2 100) 1) prime? #f)
(294301 (+ 294000 (* 3 100) 1) prime? #f)
(294401 (+ 294000 (* 4 100) 1) prime? #f)
(294501 (+ 294000 (* 5 100) 1) prime? #f)
(294601 (+ 294000 (* 6 100) 1) prime? #f)
(294701 (+ 294000 (* 7 100) 1) prime? #f)
(294801 (+ 294000 (* 8 100) 1) prime? #f)
(294901 (+ 294000 (* 9 100) 1) prime? #f)
(294011 (+ 294000 (* 1 10) 1) prime? #f)
(294021 (+ 294000 (* 2 10) 1) prime? #f)
(294031 (+ 294000 (* 3 10) 1) prime? #f)
(294041 (+ 294000 (* 4 10) 1) prime? #f)
(294051 (+ 294000 (* 5 10) 1) prime? #f)
(294061 (+ 294000 (* 6 10) 1) prime? #f)
(294071 (+ 294000 (* 7 10) 1) prime? #f)
(294081 (+ 294000 (* 8 10) 1) prime? #f)
(294091 (+ 294000 (* 9 10) 1) prime? #f)
(294000 (+ 294000 (* 0 1) 0) prime? #f)
(294002 (+ 294000 (* 2 1) 0) prime? #f)
(294003 (+ 294000 (* 3 1) 0) prime? #f)
(294004 (+ 294000 (* 4 1) 0) prime? #f)
(294005 (+ 294000 (* 5 1) 0) prime? #f)
(294006 (+ 294000 (* 6 1) 0) prime? #f)
(294007 (+ 294000 (* 7 1) 0) prime? #f)
(294008 (+ 294000 (* 8 1) 0) prime? #f)
(294009 (+ 294000 (* 9 1) 0) prime? #f)
</pre>
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