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06-01-2007
| #23 (permalink) |
| Doom-sayer, new to the faith  Join Date: Jun 2007 Location: USA
Posts: 461
|  Re: Prime or Not Prime prime? 13776217 (not even sure) |
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Well, it seems that foreboding has fallen over the calm world that I call home. ZS forums and I are now best buds. (I think that zombies have less cred than nukes as a doomsday, but slightly more than aliens...)
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06-02-2007
| #29 (permalink) | |
| Be gentle, newcomer Join Date: May 2007
Posts: 3
| Re: Prime or Not Prime Quote:
Have a go at 8837. Last edited by Jeremy23 : 06-02-2007 at 11:24 PM. Reason: I guess I should state what it's divisible by. | |
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06-03-2007
| #31 (permalink) |
| Doom-sayer, new to the faith Join Date: Jun 2007 Location: USA
Posts: 461
| Re: Prime or Not Prime no, divisible by 3 1377645887 (this is on my math homework, need to know if I can simpilifiy) Last edited by SenixMarcoviAhaa : 06-03-2007 at 01:16 AM. |
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Well, it seems that foreboding has fallen over the calm world that I call home. ZS forums and I are now best buds. (I think that zombies have less cred than nukes as a doomsday, but slightly more than aliens...)
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06-03-2007
| #32 (permalink) |
| Retired User  Join Date: May 2007
Posts: 372
| Re: Prime or Not Prime That one's impossible to do in your head... and it's not prime... It sounds more like a programming exercise than a math problem, especially since the prime factors are so large. The factors are 1753 and 785879. 19343 |
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06-03-2007
| #33 (permalink) |
| Doom-sayer, new to the faith Join Date: Jun 2007 Location: USA
Posts: 461
| Re: Prime or Not Prime I was a smart ass in class(algebra I), and tata, hard assignment! |
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Well, it seems that foreboding has fallen over the calm world that I call home. ZS forums and I are now best buds. (I think that zombies have less cred than nukes as a doomsday, but slightly more than aliens...)
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06-03-2007
| #34 (permalink) | |
| the wicked one  Join Date: May 2007 Location: Saarbrücken, Germany
Posts: 1,918
 | Re: Prime or Not Prime Quote:
the last digit gets 7 times added to the remaining number do this over and over as long as necessary. if one of the resulting numbers is divisible by 23 so is the first number. 852651 | |
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guinness: easy to pour and sweet as a nut!
