Answer:
GCF= 4 LCM=40
Step-by-step explanation:
Factors of 8:1,2,4,8
Factors of 20:1,2,4,5,10,20
Greatest common factor is 4 because it is the highest factor in both sets.
Multiples of 8:8,16,24,32,40,48,56,64,72,80...etc
Multiples of 20:20,40,60,80,100,120,140...etc
Lowest common multiple is 40 because it is the lowest multiple in both sets.
