TCS Company Numerical Ability Number System

A number 2088 by what if we divide the number it will become a perfect square?

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TCS Other Question

what is the remainder when (100!)^100 is divided by 23? 19.If f(x) = sum of all the digits of x, where x is a natural number, then what is the value of f(101)+f(102)+f(103)+ .. +f(200)?
Option 1 : 1000 Option 2 : 784 Option 3 : 999 Option 4 : 1001