Answer :
Factors of 20: 1; 2; 4; 5; 10; 20
Factors of 44: 1; 2; 4; 11; 22; 44
Factors of 88: 1; 2; 4; 8; 11; 22; 44; 88
LCM(20; 44; 88) = 4
Factors of 44: 1; 2; 4; 11; 22; 44
Factors of 88: 1; 2; 4; 8; 11; 22; 44; 88
LCM(20; 44; 88) = 4