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%I #7 Dec 18 2022 12:07:56
%S 31,73,7,13,37,61,67,1,43
%N A 3 X 3 magic square read by rows.
%C The magic sum is 111. Except for the number 1, all other numbers in this magic square are primes.
%D J. A. H. Hunter, "Mathematical Brain-Teasers", Dover Publications, New York, (1976), pp. 52.
%e The magic square is:
%e 31, 73, 7
%e 13, 37, 61
%e 67, 1, 43
%K fini,full,nonn,tabf
%O 1,1
%A _Parthasarathy Nambi_, Sep 04 2007