Gcd and lcm

Calculate the greatest common divisor and the least common multiple of numbers.
a) 16 and 18
b) 24 and 22
c) 45 and 60
d) 36 and 30

Correct answer:

a1 =  2
a2 =  144
b1 =  2
b2 =  264
c1 =  15
c2 =  180
d1 =  6
d2 =  180

Step-by-step explanation:

16=24 18=232 GCD(16,18)=2  a1=GCD(16,18)=2
16=24 18=232 LCM(16,18)=2432=144  a2=LCM(16,18)=144
24=233 22=211 GCD(24,22)=2  b1=GCD(24,22)=2
24=233 22=211 LCM(24,22)=23311=264  b2=LCM(24,22)=264
45=325 60=2235 GCD(45,60)=35=15  c1=GCD(45,60)=15
45=325 60=2235 LCM(45,60)=22325=180  c2=LCM(45,60)=180
36=2232 30=235 GCD(36,30)=23=6  d1=GCD(36,30)=6
36=2232 30=235 LCM(36,30)=22325=180  d2=LCM(36,30)=180



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