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Old 2015-07-15, 18:30   #1
ATH
Einyen
 
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Dec 2003
Denmark

22·769 Posts
Default Big Powermods

Which software is fastest at powermod? Not an LL test, just a "simple":

ab mod c, but where a,b and c are millions of digits.
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Old 2015-07-15, 18:48   #2
danaj
 
"Dana Jacobsen"
Feb 2011
Bangkok, TH

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gwnum is quite fast once into the thousands of digits -- much faster than GMP. I think based on indirect results that GMP is faster on the smaller end, but that's not certain.

I'm interested in hearing results and especially seeing benchmark results if someone is ambitious.
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Old 2015-07-15, 21:34   #3
TheJudger
 
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"Oliver"
Mar 2005
Germany

11·101 Posts
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b is millions of digits, too?
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