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across

  • 4 years ago

This one should be fun: http://dl.dropbox.com/u/12189012/fact.html

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  1. SUROJ
    • 4 years ago
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    2 137 577 22689565741

  2. Savvy
    • 4 years ago
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    it's prime.... ;)

  3. across
    • 4 years ago
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    Where did you get those numbers from? And it's not a prime number.

  4. Savvy
    • 4 years ago
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    are you actually serious about solving that....????

  5. SUROJ
    • 4 years ago
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    I use some algorithms online

  6. across
    • 4 years ago
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    I guess you're right: this website is not a serious place. :)

  7. across
    • 4 years ago
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    Your algorithms are wrong because the number ends in 7, yet you say that it's divisible by 2. :P

  8. Savvy
    • 4 years ago
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    actually this is a nyc place but that no. is a bit too large to solve...

  9. SUROJ
    • 4 years ago
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    oh yea......so it should be only itself...

  10. across
    • 4 years ago
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    This number has only two factors.

  11. SUROJ
    • 4 years ago
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    yes.....got it

  12. Savvy
    • 4 years ago
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    then they have to be 1 and itself and hence its prime...

  13. across
    • 4 years ago
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    I already said that the number is not prime!

  14. Savvy
    • 4 years ago
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    then how can it have ONLY 2 factors.....1 and itself have to be compulsory factors....

  15. across
    • 4 years ago
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    With two factors, I obviously meant to state proper ones (and excluding 1).

  16. across
    • 4 years ago
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    Otherwise, the problem would've been trivial, no? ;P

  17. Savvy
    • 4 years ago
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    with such a LARGE no. the problem can never be a trivial one.....

  18. Zarkon
    • 4 years ago
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    2158122193002952449690243008233157266924190689, 24058327474941875553768074062128402939746847713

  19. across
    • 4 years ago
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    I said that the problem would have been trivial if it had been a prime.

  20. across
    • 4 years ago
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    Zarkon, how did you do that? ;P

  21. across
    • 4 years ago
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    I wonder if you wrote a program.

  22. Zarkon
    • 4 years ago
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    I'm part machine.

  23. apoorvk
    • 4 years ago
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    so, how do we 'solve' this? o.O

  24. sasogeek
    • 4 years ago
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    i'm going to write a program to solve this :) and yes, should be fun :D

  25. FoolForMath
    • 4 years ago
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    Not just any program, we need a very fast prime factorization algorithm is required. If you are very confident about your algorithm , you may consider testing it here:www.spoj.pl/problems/FACT2/

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