You are here,

Help, Search
New Batches at TathaGat Delhi!
number system
by rahul srivastav - Monday, 23 July 2012, 12:42 PM
  Some numbers can be expressed as the sum of three of their factors. E.g. 12 can be expressed as the sum of 2, 4 and 6. How many other such numbers are there which are less than 100?
Reply
Re: number system
by Mohit Sharma - Monday, 23 July 2012, 01:02 PM
  Hi rahul,
THere wil be 16 such numbers. It all will be factors of 6. Like 6,12,18,etc. This is because 6 is the only no which can be expressed as a sum of its 3 factors.
Please tell me if i m wrng.
Thanks,
Show parent | Reply