One and two.
54 doesn't go evenly into 77. 54 goes into 77 once with a remainder of 23.
Yes, it does.
Not evenly.
Not evenly.
1,2,3,4,6,9,13,18,26,54.
2 & 3, and their multiples
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
No. 97 is not evenly divisible by 40.
No. 40 is not evenly divisible by three.
No. 40 is not evenly divisible by 15.
No. 40 is not evenly divisible by 18.