标题:
a question about remainder
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作者:
migei
时间:
2005-4-12 12:23
标题:
a question about remainder
What is the remainder when 7^(4n+3) 6^n is devided by 10
Pl clarify in detail :-
(x) denotes the least integer greater or equal to x,(2x)=?
作者:
sandyzeng
时间:
2005-4-12 15:06
Do you have any restrictions on n?
integer, positive, negative...
作者:
elitist
时间:
2005-4-12 23:03
7^1 =
7
7^2 = 4
9
7^3 = 34
3
7^4 = 240
1
7^5 = 1680
7
If you see the patten , the numbers are pepeating after every 4 th power. So remainer is 3.
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