. Check whether 6n can end with the digit 0 for any natural number n
Answer: If any number has last digit 0,
Then, it should be divisible by 10
Factors of 10 = 2×5
Value 6n should be divisible by 2 or 5
Prime factorisation of 6n = (2×3)n
6n is divisible by 2 but not by 5.
It can not end with 0.