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# 12^1+12^2+12^3+12^4+12^5 is divided by 9. Find the remainder

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12^1+12^2+12^3+12^4+12^5 is divided by 9. Find the remainder [#permalink]  08 Oct 2003, 05:00
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12^1+12^2+12^3+12^4+12^5 is divided by 9. Find the remainder.
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Joined: 21 Aug 2003
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Location: Bangalore
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Kudos [?]: 4 [0], given: 0

[#permalink]  08 Oct 2003, 05:10
interesting...
12^2+12^3+12^4+12^5 has 9 factor in them
thus,
12^1+12^2+12^3+12^4+12^5 = 12 + 9*k
= 9(k+1) + 3
My answer: 3 (remainder)
[#permalink] 08 Oct 2003, 05:10
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# 12^1+12^2+12^3+12^4+12^5 is divided by 9. Find the remainder

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