perplexus.info :: Numbers : Eleven is a factor

Eleven is a factor (Posted on 2013-09-26)

Determine all three-digit numbers N such that N is divisible by 11 and N/11 is equal to the sum of the squares of N's digits.

No Solution Yet Submitted by Ady TZIDON

No Rating

Comments: ( Back to comment list | You must be logged in to post comments.)

Excel solution

Comment 1 of 1

550 / 11 = 50 = 25 + 25
803 / 11 = 73 = 64 + 9

Posted by Larry on 2013-09-26 17:13:52

Please log in:

Forums (0)
Newest Problems
Random Problem
FAQ | About This Site
Site Statistics
New Comments (1)
Unsolved Problems
Top Rated Problems
This month's top
Most Commented On

Chatterbox:


perplexus dot info