Răspuns :
75 = 3 * 5^2
105 = 3 * 5 * 7
120 = 2^3 * 3 * 5
C.m.m.d.c.(75,105,120) = 3*5 = 15
75 = 3x25 = 3x5²
105 = 3x35 = 3x5x7
120 = 12x10 = 4x3x2x5 = 2²x2x3x5 = 2³x3x5
cmmdc = 3x5 = 15
75 = 3 * 5^2
105 = 3 * 5 * 7
120 = 2^3 * 3 * 5
C.m.m.d.c.(75,105,120) = 3*5 = 15
75 = 3x25 = 3x5²
105 = 3x35 = 3x5x7
120 = 12x10 = 4x3x2x5 = 2²x2x3x5 = 2³x3x5
cmmdc = 3x5 = 15