One and two.
54 doesn't go evenly into 77. 54 goes into 77 once with a remainder of 23.
Yes, it does.
The numbers that go into both 18 and 54 evenly are 1, 2, 3, 6, 9, 18.
The lowest common multiple of 54 and 60 is 540
2 & 3, and their multiples
1,2,3,4,6,9,13,18,26,54.
Not evenly.
Not evenly.
13.5
No. 40 is not evenly divisible by 18.
No. 97 is not evenly divisible by 40.
No. 40 is not evenly divisible by 15.