Monday, March 31, 2014

Remainder of power numbers on division

Remainder of power numbers on division
The remainder of a number n to the power of p when divided by a divisor d is cyclically varying not only for p but also for n . For example when d = 7 ,the cyclic variation of the remainder is same for np  and
(n+ 7x)p
Remainder of np when divided by 7
n/p         0              1              2              3              4              5              6              7              8              9              10
1              1              1              1              1              1              1              1              1              1              1              1
2              1              2              4              1              2              4              1              2              4              1              2             
3              1              3              2              6              4              5              1              3              2              6              4
4              1              4              2              1              4              2              1              4              2              1              4
5              1              5              4              6              2              3              1              5              4              6              2
6              1              6              1              6              1              6              1              6              1              6              1
7              1              0              0              0              0              0              0              0              0              0              0
8              1              1              1              1              1              1              1              1              1              1              1             
9              1              2              4              1              2              4              1              2              4              1              2
10           1              3              2              6              4              5              1              3              2              6              4

It is found that the remainder of (1+7x)p when divided by 7 is 1,for all values of x and p..The remainder of  n6 when divided by 7  is 1 for all values of n except n = 7x. It is 0 for n = 7x

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