mersenneforum.org This simple algorithm incomplete can only calculate prime numbers?
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 2015-11-26, 10:48 #23 Ale   3×11×37 Posts this is correct number 8 : (11:44) gp > 30474925270400000*3*2*4*5*3*6*7*8 %148 = 3686246960707584000000 (11:44) gp > isprime(%-1) %149 = 1 (11:44) gp > before at number 8 and 9 i have write ,30479 but was wrong
 2015-11-26, 10:56 #24 Ale   2×5×463 Posts this is correct this is number 9: (11:53) gp > 30474925270400000*3*2*4*5*3*6*7*8*3*2*4*5*6*3*7*8*9 %156 = 4012995891304704245760000000 (11:54) gp > isprime(%-1) %157 = 1 (11:54) gp > right now.
 2015-11-26, 11:20 #25 Ale   25×43 Posts numer 10 not direct number 11 (12:16) gp > 30474925270400000*3*2*4*5*3*6*7*8*3*2*4*5*6*3*7*8*9*3*5*6*7*3*8*9*11 %187 = 6006973289776185691393228800000000 (12:16) gp > isprime(%-1) %188 = 1 (12:17) gp >
 2015-11-26, 11:41 #26 Ale   22·23·67 Posts number 12: *3*7*8*9*3*8*9*11*12 %219 = 258961483526405092926701654192947200000000 (12:38) gp > isprime(%-1) %220 = 1 (12:38) gp >
 2015-11-26, 12:33 #27 Ale   26×3×31 Posts but number 13 is wrong
2015-11-26, 12:37   #28
science_man_88

"Forget I exist"
Jul 2009
Dumbassville

203008 Posts

Quote:
 Originally Posted by Ale but number 13 is wrong
okay so all I see is random number to me so there's really nothing to program from.

 2015-11-26, 12:43 #29 LaurV Romulan Interpreter     "name field" Jun 2011 Thailand 24×613 Posts Move to misc math...
 2015-11-26, 13:10 #30 Ale   3×2,063 Posts But if now *3* get *5* , the number 13 is right <*7*8*9*3*8*9*11*12*5*2*4*5*6*7*5*11*12*13 %373 = 18663872040715067857413241620994090598400000000000 (14:05) gp > isprime(%-1) %374 = 1 (14:05) gp >
2015-11-26, 13:14   #31
science_man_88

"Forget I exist"
Jul 2009
Dumbassville

838410 Posts

Quote:
 Originally Posted by Ale But if now *3* get *5* , the number 13 is right <*7*8*9*3*8*9*11*12*5*2*4*5*6*7*5*11*12*13 %373 = 18663872040715067857413241620994090598400000000000 (14:05) gp > isprime(%-1) %374 = 1 (14:05) gp >
you know you can use the code tags they use the # symbol in the advanced reply setup.

 2015-11-26, 13:37 #32 Ale   22×5×17×29 Posts okay so all I see is random number to me so there's really nothing to program from. no probem , is impossible , i know.
 2015-11-26, 13:38 #33 Ale   2×37×61 Posts i know the symbol

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