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129 again (Posted on 2010-09-15) Difficulty: 3 of 5
There is a four digit number such that when multiplied by a single digit produces another four digit number i.e. "ABCD"*E="FGHI " (the letters between the quotation signs designate a concatenation, not the product).

The letters represent 9 non-zero distinct digits.

Find the two existing solutions to this 9-digit problem.

No Solution Yet Submitted by Ady TZIDON    
Rating: 3.3333 (3 votes)

Comments: ( Back to comment list | You must be logged in to post comments.)
Solution solution | Comment 1 of 6
1738*4=6952
1963*4=7852

Used Excel for brute force search.  I couldnt think of a function to find where every digit is different.  Instead I summed the digits and looked at the ones that summed to 45.

  Posted by Jer on 2010-09-15 14:54:13
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