IMO 1979 LL FIN18
Show that for no integers a \geq1, n \geq1 is the sum
IMO 1979 LL FIN18
Origin: FIN
Problem
Show that for no integers a \geq1, n \geq1 is the sum 1 + 1 + a + 1 + 2a + \cdot \cdot \cdot + 1 + na an integer.
Show that for no integers a \geq1, n \geq1 is the sum
Origin: FIN
Show that for no integers a \geq1, n \geq1 is the sum 1 + 1 + a + 1 + 2a + \cdot \cdot \cdot + 1 + na an integer.