perplexus.info :: Numbers : 129 again

129 again (Posted on 2010-09-15)

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.)

re: No Subject

| Comment 5 of 6 |

(In reply to No Subject by broll)

broll writes:

"It is readily apparent that either e and i are both even, or they are both odd, in which case d must be also be odd"

This isn't apparent to me. Couldn't e be odd and i even, in which case d must be even?

Posted by Steve Herman on 2010-09-16 14:35:44

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