The number is 381654729.I can show that it is unique by testing all possible values between 123456789 and 987654321 and that is the only solution. It isn't a mathematical proof I know.Paul
The number is 381654729.
ReplyDeleteI can show that it is unique by testing all possible values between 123456789 and 987654321 and that is the only solution. It isn't a mathematical proof I know.
Paul