Question

Lcm by division method of 16,28,40,77

Answer 1

Answer:

16= 2×2×2×2

28= 2×2×7

40= 2×2×2×5

77= 7×11

now pick up the common values that are 2,2,2 and remaining uncommon values are 2, 7,5,11

now multipy 2 only once as it is common and all uncommon values as follows:

2×2×7×5×11=1540

Answer 2

Answer:

16=2×2×2×2

28=2×2×7

40=2×2×2×5

77=7×11

pick up the common numbers

2×2×2×5×7×11= 3080

pick up the uncommon numbers

7×5×11= 385