For what value of ‘n’ would 4n end with zero?
It will not end with zero for any value of n.
4n=22n Now, if a number ends with zero, it should be divisible by 5. ⇒ One of the prime factors will be 5. But 4n is not divisible by 5, therefore it will never end with zero.
Consider the number 4n, where n is a natural number. Check whether there is any value of n for which 4n ends with the digit zero. [2 MARKS]