|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?|
Re: number system
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.