Question

find the number of 2 digit numbers divisible by the product of the digits​

Answer 1

• I started my thought process with a 2 digit number.
• 1111=11*11=11 which is a factor of 11
• 1212=11*22=22 which is a factor of 12
• 1515=11*55=55 which is a factor of 15
• Similarly, I get 2424 and 3636.Therefore,My Ans is 55.
• I could not calculate though any numbers between 50 to 60,60 to 70,70 to 80,80 to 90 and 100.