Question

aflati c.m.m.d.c si c.m.m.m.c al numerelor: a) 24;45;72 b) 420;504

Answer 1

a)24|2
12|2
6|2
3|3
1
24=2³×3
45|3
15|3
5|5
1
45=3²×5
72|2
36|2
18|2
9|3
3|3
1
72=2³×3²
c.m.m.d.c=3
c.m.m.m.c=2³×3²×5
=8×9×5
= 72×5
= 360
b) 420|2×5
42|2
21|3
7|7
1
420=2²×3×5
504|2
252|2
126|2
63|3
21|3
7|7
1
504=2²×3²×7
c.m.m.d.c=2²×3
=12
c.m.m.m.c=2²×3²×5×7
=4×9×35
=36×35
=1260
Sper ca te-am ajutat !