Question

Tìm ƯCLN (120, 78, 168)

Answer 1

Ta có: 120 = 2^3 x 3 x 5

          78 = 2 x 3 x 13

          168 = 2^3 x 3 x 7

=> ƯCLN(120;78;168) = 2 x 3 = 6

Answer 2

Ta co :120=2mu3 .3.5 78=2mu2.3mu2 168=2mu3.3.7 Ucln=2mu2.3=12 Vay ucln(120,78,168)=12

Answer 3

Ta có :

120 = 2³  . 3 . 5

78 = 2.3.13

168 = 2³ . 3 . 7

ƯCLN (120;78;168) = 2 . 3 = 6