what is the unit digit in 7^105
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here we can see that
(7)¹ = 7
7² = 49
7³ = 343
7⁴ = 2401
7^5 = 16807
unit digit is repeating after every four power
thus 105/4
remainder = 1
thus unit digit will be 7
7^105 = 54361846697263307560529495055267343940077014163990039113495978834700158362117849904436807
(7)¹ = 7
7² = 49
7³ = 343
7⁴ = 2401
7^5 = 16807
unit digit is repeating after every four power
thus 105/4
remainder = 1
thus unit digit will be 7
7^105 = 54361846697263307560529495055267343940077014163990039113495978834700158362117849904436807
jayapandian:
Thank you,Sir.
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