CrayonsFive friends A, B, C, D and E has come to a shop to buy crayons for their art project. They need cra...

Phi Numbers in Range!In number theory, Euler’s phi function, denoted as ϕ(n), is an arithmetic function which counts the ...

New Divisor ProblemIn mathematics, a divisor of an integer n, also called a factor of n, is an integer m that may be mu...

Taju Kage Bunshin No JutsuNaruto Uzumaki is one of the strongest ninja of RUET (Rasengan University of Ebisu and Tobi), posses...
