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Old 2018-02-21, 18:15   #6
VBCurtis's Avatar
Feb 2005
Riverside, CA

106328 Posts

Originally Posted by Uncwilly View Post
The simple answer is -no-.
There is no practical way to look at the residue before that and get the answer.
I don't think OP ever asked if the answer would be known before 100%. For OP's question, "will reaching 100% give me the answer of Prime! or notprime", the answer is yes.
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