There are four numbers a, B, C and D. the least common multiple of AB is 120 and the least common multiple of CD is 160?

There are four numbers a, B, C and D. the least common multiple of AB is 120 and the least common multiple of CD is 160?

four hundred and eighty
T must be a multiple of 120; t must be a multiple of 160;
Find the least common multiple of 120 and 160; 480
So 480