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Consecutive digits (Posted on 2012-08-20) Difficulty: 1 of 5
(I) What is the largest 3-digit base ten positive integer such that when multiplied by a single digit, the result is a base ten 4-digit positive integer, with consecutive digits in order (example: 1234, 4567 etc, but not 0123 or, 7968)?

(II) What is the largest 3-digit base ten positive integer such that when multiplied by a single digit, the result is a base ten 4-digit positive integer, with consecutive digits in reverse order (example: 3210, 5432 etc, but not 9786)?

No Solution Yet Submitted by K Sengupta    
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  Subject Author Date
Solutioncomputer solutionCharlie2012-08-20 12:26:50
SolutionPart 2Chris, PhD2012-08-20 10:30:56
SolutionPart 1Chris, PhD2012-08-20 10:26:25
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