i don't understand what lowercase g function does, i don't think.
it says g(5)=12 but (1+sqrt(7))^12 expands to something that cannot have a 1 modulo any number.
see wolfram alpha screenshot below:
https://ibb.co/Q9Spv3k
thanks for explaining in advance.
Problem 752
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hk
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Re: Problem 752
You can verify that (1+sqrt(7))^12=2757056+1041920*sqrt(7) (see also your screenshot of Wolfram)
2757056 mod 5=1 and 1041920 mod 5=0
2757056 mod 5=1 and 1041920 mod 5=0
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