CUET Preparation Today
In which of the following numbers the digit at the units place is 2? |
$6^{601}$ $2^{201}$ $4^{401}$ $8^{801}$ |
$2^{201}$ |
The correct answer is Option (2) → $2^{201}$ $(2^{201})=(2^4)^{50}.2$ Now, Unit place of $(2^4)^{50}$ is 6 ∴ Unit digit of $(2^4)^{50}.2=2$ |
