Tutorial

Topic : Unit Digit of Numbers in Exponential form: (The last number of expanded form)

Find the unit digit of the exponential Number: 25²³

Step 1 : 25²³ (Given in the Question)

Step 2 : Unit digit of base 25 is 5 power is 23

Step 3 : Thus, the unit digit of 25²³ is 5

Step 4 : Therefore 5 is the answer.

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