a)HCF between 774&252 is=18
LCM between 774&252=10836
b)HCF between 204&544 is=68
LCM between 204&544 is=1632
c)HCF between 770&385 is=385
LCM between 770&385 is =770
d)HCF between 477&552=3
LCM between 447&552 is =82248
Step-by-step explanation:
a)because LCM=2Γ2Γ3Γ3Γ7Γ43
b)because LCM=2Γ2Γ2Γ2Γ2Γ3Γ17
c)because LCM=2Γ5Γ7Γ11
d)because LCM=2Γ2Γ2Γ3Γ23Γ149