10^23-7 is divided by 6, remainder is?

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parth21

  • Jan 23rd, 2008
 

10=4(mod 6)
10^2=4(mod 6)
.......................
........................
10^22=4(mod 6)

10^23=8(mod 6)
           =2(mod 6)

10^23-7=2(mod 6)

10^23=9(mod 6)
          =3(mod 6)

ans is 3

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