MathDB
n^k divides [A]

Source: Moldova TST 2005

March 21, 2005
calculusintegrationfunctionnumber theory proposednumber theory

Problem Statement

A=3m=1n2(12{m})A=3\sum_{m=1}^{n^2}(\frac12-\{\sqrt{m}\}) where nn is an positive integer. Find the largest kk such that nkn^k divides [A][A].