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the divisor of 11 ^25 +7?

From the Videos Cyclicity of factors e.g. given as 2^2^2015. Can nyou explain how 2^2015 is written as 2*4^1007?

number sytem divisibility rule

when a man allows 36% commission on the retail price of his product,he earns a profit of 8.8 %. what would be his profit percent if the commission is reduced by 24 %?

How do easily solve cubes

16/8/2017ke daily quotient ke questions no 4 ,5ke ans

In how many ways can 18 identical balls be distributed in 3 groups such that each group have at least 1 ball?? 

Can't this be solved by the formula of positive integeral solution ????

How to star verbal preparation ?