1.

What is the unit digit of 144 +156*193^123?​

Answer»

ong>Step-by-step explanation:

156×(193)¹²³

Unit digit of (193)¹²³ is 3¹²³

3¹²³=3^(4(30)+3)=3³=27

Unit digit of (193)¹²³ is 7

Unit digit of 156 is 6

Unit digit of (193)¹²³×156 is 6×7 or 42 or 2

Unit digit of 144 is 4

Unit digit of 144+156×(193)¹²³ is

4+2 (or) 6



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