Recent content by aalireza

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    Graduate Why Are 10-adics Not a Field?

    @Landau: My bad, you're right. But what is the zero divisors for 10-adics? Is there any example?
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    Graduate Prime factorization for large numbers

    I did the damn thing, I just entered the non-zero part in Wolfram and factorize the rest of them myself. --- @Bill Simpson & @phyzguy: Of course, if you enter : http://www.wolframalpha.com/input/?i=factor%28987654320987654321*2^180*5^180 It will give you the answer, but The numbers...
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    Graduate Prime factorization for large numbers

    Oops. Sorry! I did miss a REALLY important thing(!): they are really so simple/silly! They are full of zeros, for example one of them is 909091 with 150 zeros after it, so the only problem would be factorizing 909091 and that's not a big deal. so the answer of the given number will be...
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    Graduate Prime factorization for large numbers

    I need to factorize large numbers (some of them have about 200 decimal digits). Wolfram alpha is a dead end and programming with python is not working for me too. Any suggestions?
    • aalireza
    • Thread
    • Factorization Large numbers Numbers Prime
    • Replies: 6
    • Forum: General Math
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    Graduate Why Are 10-adics Not a Field?

    I've got a question and I really need the answer! Why 10-adics are not a field? And generally, How can you be sure that a given set is a field or not? For example rational numbers are a field, but what about the others and how can you be sure?