Question

What is the unit digit of 142^111*169^178-273^111

Answer 1

Question :- What is the unit digit of 142^111*169^178-273^111

Answer :-

we know that,

• last digits of power of 2 = 2, 4, 8 and 6 .
• last digits of power of 9 = 9 and 1.
• last digits of power of 3 = 3, 9, 7 and 1 .

so,

→ (142)¹¹¹ * (169)¹⁷⁸ - (273)¹¹¹

→ (2)¹¹¹ * (9)¹⁷⁸ - (3)¹¹¹

→ (2)^(111÷4) * (9)^(178÷4) - (3)^(111÷4)

→ (2)³ - (9)² - (3)³

→ 8 - 81 - 27

→ 8 - 1 - 7

→ 8 - 8

→ 0 (Ans.)

Learn more :-

if a nine digit number 260A4B596 is divisible by 33, Then find the number of possible values of A.

https://brainly.in/question/32686002

if n is an integer such that 1nn352 is a six digit number

https://brainly.in/question/26617043

Answer 2

Answer:

answer is (ZERO 0)