The number is 1.
No - while 6 goes into 36, it does not go evenly into 56.
9.
1
3 and 1 will go into both number evenly leaving no remainders.
It is: 1
9
9 is an odd number but in decimal form you can use 4.5
The number 1 is the only one.
no
Just 1.
1, 3, 9, 27.
' 1 ' is the only whole number that goes into both 9 and 5 evenly (without a remainder).