Question

determinati cifra x astfel incat numerele sa fie prime a) x, 1x, 2x; b) 1x, 2x, 5x; c)4x, 6x, 9; d) 1x, 2x, 4x; e) 3x, 4x, 6x; f) x, 1x, 3x, 4x;

Answer 1

Răspuns:

a) x=3

b) x=3

c) x=1

d) x=3

e) x=7