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 2018-07-19, 14:26 #1 cmd     "(^r'°:.:)^n;e'e" Nov 2008 ;t:.:;^ 33×37 Posts index of TF __ 0 1 2 3 4 __ 0 2 4 6 8 05 | 01 15 | 03 <<== 2+1 ( 2+1 ) index 2 35 | 07 45 | 09 <<== 5+4 ( 03*03 ) index 5 - 55 | 11 65 | 13 85 | 17 95 | 19 __ 1 3 5 7 9 2z-1 == (z+1)/2 (_|\/|_) Last fiddled with by cmd on 2018-07-19 at 14:52 Reason: 1 ( true ) 1 is not prime
2018-07-19, 14:44   #2
science_man_88

"Forget I exist"
Jul 2009
Dumbassville

838410 Posts

Quote:
 Originally Posted by cmd 2z-1 == (z+1)/2
z==1

2018-07-19, 15:01   #3
cmd

"(^r'°:.:)^n;e'e"
Nov 2008
;t:.:;^

33·37 Posts

Quote:
 Originally Posted by science_man_88 z==1

I ... sm88

pari gp > if ( z == 49 , print ( " 97 is prime " ) )

2018-07-19, 15:12   #4
science_man_88

"Forget I exist"
Jul 2009
Dumbassville

26·131 Posts

Quote:
 Originally Posted by cmd I ... sm88 pari gp > if ( z == 49 , print ( " 97 is prime " ) )
congruence works in this case for divisors of 72 = (2*49-1)-((49+1)/2)=97-25

2018-07-19, 15:34   #5
cmd

"(^r'°:.:)^n;e'e"
Nov 2008
;t:.:;^

99910 Posts

Quote:
 Originally Posted by science_man_88 congruence works in this case for divisors of 72 = (2*49-1)-((49+1)/2)=97-25
25 is index of num 49 ( 25+24 ) 07 ( 4+3 ) 07^2 ( z=25) (z+=35) ndx 60 num 119 = 120-1
49 is ndx of num 97 ( 49+48 )

( z+=35 ) 95 ndx of num 189
( z+=35 ) 130 ndx of num 259
for ever ... continue

 2018-07-24, 14:24 #6 cmd     "(^r'°:.:)^n;e'e" Nov 2008 ;t:.:;^ 33·37 Posts unique "grid" model Attached Thumbnails   Last fiddled with by cmd on 2018-09-24 at 13:24
 2018-10-16, 13:17 #7 cmd     "(^r'°:.:)^n;e'e" Nov 2008 ;t:.:;^ 33×37 Posts "group" H 11 group Y 21 ( sequence ) 43, 109, ... oo (_|\/|_) Attached Thumbnails
 2018-10-16, 13:38 #8 cmd     "(^r'°:.:)^n;e'e" Nov 2008 ;t:.:;^ 33·37 Posts u see structure : ___ = 777 .._ = 778 replace line for prime + ( 776 ) Attached Thumbnails     Last fiddled with by cmd on 2018-10-16 at 15:16 Reason: where you see a symmetry, find order
 2019-11-21, 16:21 #9 cmd     "(^r'°:.:)^n;e'e" Nov 2008 ;t:.:;^ 11111001112 Posts 5of10 Attached Thumbnails
 2019-11-25, 13:13 #10 cmd     "(^r'°:.:)^n;e'e" Nov 2008 ;t:.:;^ 33×37 Posts dec 0 0 1 9 x 2 8 3 7 + 4 6 5 5 * 6 4 7 3 + 8 2 9 1 x hex 0 0 1 f 2 e 3 d 4 c + 5 b 6 a * 7 9 8 8 * 9 7 a 6 * b 5 c 4 + d 3 e 2 f 1 (_|\/|_)

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