Question

calculeaza a) (21,49,70) b) (140,315,245) c) (240,300,180) d) (180,216,72) e) (125,375,225) f) (121,1001,77) PLS CU REZOLVARE REPEDEE

Answer 1

a 140
b 700
c 720
d 468
e 725
f 1199

Answer 2

c.m.m.d.c.
a) 21=3×7;  49=7²;  70=2×5×7       (21, 49, 70)=7
b) 140=2²×5×7;   315=3²×5×7;  245=5×7²    (140, 315, 245)=5×7=35
c) 240=2∧4×3×5;  300=2²×3×5²;  180=2²×3²×5;  (240, 300, 180)=2²×3×5=60 
d) 180=2²×3²×5;  216=2³×3³;  72=2³×3²   (180, 216, 72)=2²×3²=36
e) 125=5³;  375=3×5³;  225=3²×5²     (125, 375, 225)=5²=25
f) 121=11²;  1001=11×7×13;  77=7×11  (121, 1001, 77)=11