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Digital Sum 11 (Posted on 2008-12-08) Difficulty: 3 of 5
Two consecutive numbers both have a digital sum which is a multiple of 11. What is the smallest pair of numbers?

Note: the digital sum is the number equalling the sum of all the digits of the number. For example the digital sum of 123456 is 21.

See The Solution Submitted by Brian Smith    
Rating: 2.0000 (3 votes)

Comments: ( Back to comment list | You must be logged in to post comments.)
Answer | Comment 3 of 5 |
The required pair of consecutive numbers is  (2899999, 2900000)

Edited on January 5, 2009, 1:57 pm
  Posted by K Sengupta on 2009-01-05 13:48:55

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