hi Christian, I think, I could do that. I need a text-file, (preferrably 1 number per line) Guenter. ------------------------------------- In einer eMail vom 16.11.2005 19:41:32 Westeuropäische Normalzeit schreibt cboyer@club-internet.fr: I have new multiplicative magic squares of orders 10, 11, 12, 13, 14. I think that they are correct... but because stupid errors are always possible when objects use more than 100 integers, I search an external checking of the 5 examples. Who could check that the squares are correct? Use of distinct integers, good products, checking of broken diagonals for pandiagonal squares. Warning: magic products reaching 10^29. Any help will be appreciated! Send me a direct message, I will send you an Excel file (or a text file if you prefer) with the 5 squares ready to be checked. Thanks! Christian. _______________________________________________ math-fun mailing list math-fun@mailman.xmission.com http://mailman.xmission.com/cgi-bin/mailman/listinfo/math-fun