Question

mdc(12,18,36,20)= mmc(12,18,36,20)= mdc(44,46)= mmc(44,46)=

Answer 1

mmc (12,18,36,20)=180

12,18,36,20|2
6,9,18, 10 |2
3,9,9, 5|3
1,3,3,5 |
1,1,1,5 |
1,1,1,1. ----2×2×3×3×5=180


mmc (44,46)=1012

44,46|2
22,23|2
11,23|11
1,23|23
1, 1 |------2×2×11×23=1012

mdc (44,46)=2

44|2 《
22|2
11|11
1|

46|2 《
23|23
1|