MathDB
remainder r and numbers 1059, 1417 and 2312

Source: IMO LongList 1988, India 3, Problem 38 of ILL

November 3, 2005
algebrapolynomialalgebra unsolved

Problem Statement

i.) The polynomial x2k+1+(x+1)2kx^{2 \cdot k} + 1 + (x+1)^{2 \cdot k} is not divisible by x2+x+1.x^2 + x + 1. Find the value of k.k. ii.) If p,qp,q and rr are distinct roots of x3x2+x2=0x^3 - x^2 + x - 2 = 0 the find the value of p3+q3+r3.p^3 + q^3 + r^3. iii.) If rr is the remainder when each of the numbers 1059, 1417 and 2312 is divided by d,d, where dd is an integer greater than one, then find the value of dr.d-r. iv.) What is the smallest positive odd integer nn such that the product of 217,237,,22n+17 2^{\frac{1}{7}}, 2^{\frac{3}{7}}, \ldots, 2^{\frac{2 \cdot n + 1}{7}} is greater than 1000?