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What will be the remainder when
(222)^222 is divided by 7?
Read Solution (Total 10)
-
- (7*31+5)^222 /7
5^222 /7
(5^2)^111 /7
(7*3+4)^111/7
(4^111)/7
(2^3)^37/7
(7+1)^37/7
so, 1/7
i.e remainder=1 ansr - 11 years agoHelpfull: Yes(47) No(5)
- (7*31+5)^222 /7
5^222 /7
(5^2)^111 /7
(7*3+4)^111/7
(4^111)/7
(2^3)^74/7
(7+1)^74/7
so, 1/7
i.e remainder=1 ansr sry previous 1 has a little mistake bt this 1 is right - 11 years agoHelpfull: Yes(20) No(0)
- rem of (222/7)= 5
so now rem of (5^222)/7
now checking cyclicity of rem in 5's power when dvided by 7
rem(5/7)=5
rem(25/7)=4
rem(125/7)=6
rem(625/7)=2
rem(3125/7)=3
rem(15625/7)=1
it repeats after 6 iteration.
so rem(222/6)=0
so rem of (222)^222 is divided by 7 is 1
- 11 years agoHelpfull: Yes(13) No(3)
- (2+2+2)^(2+2+2)
6^6
=46656
now 46656/7=1 reminder
ans is reminder=1 - 11 years agoHelpfull: Yes(9) No(1)
- ans.1 222^222 means unit digits are 2,4,8,6 this digit repeat again &again hence
222/4=55 & means the 3rd digit repetition 8/7=1 - 11 years agoHelpfull: Yes(3) No(0)
- 222^222/7= 5^222/7=125^74=(-1)^74/7=1 Ans.
- 11 years agoHelpfull: Yes(3) No(0)
- (17*13+1)^222
(1)^222
anything to the power 1 is 1
so rem is 1... - 11 years agoHelpfull: Yes(2) No(2)
- remainder w'll be 1
- 11 years agoHelpfull: Yes(1) No(0)
- Ans is 1 ,its very easy, simply apply reminder theorem :)
- 11 years agoHelpfull: Yes(1) No(4)
- firtst divide base by 7 then find remainder then if diviser is prime then substract by 1 and divide power by new diviser
222/7=5 rem and here 7 is prime so new diviser =7-1=6 and 222/6=0 rem
now 5^0/7=1rem - 11 years agoHelpfull: Yes(1) No(0)
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