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Insert Zero (Posted on 2016-03-21) Difficulty: 3 of 5
  

Find all integers n greater than nine that satisfy
the following:

The integer formed by inserting the zero digit
between the units and the tens digits of n is
a multiple of n.   

See The Solution Submitted by Bractals    
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Some Thoughts a humble start | Comment 1 of 5

All numbers that have 0 as the units digit qualify.

There are  some other numbers like 15, 18 since 105=15*7,  108=18*6 

-the  above just  seems evident.


**may return later


  Posted by Ady TZIDON on 2016-03-21 11:19:53
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