24
24
-23
46
456 and 24
-22
24
12 or 24
24
-23
46
The number is 83.
456 and 24
12, 24 and 36 all qualify...
The name "24-digit number" is just fine.The name "24-digit number" is just fine.The name "24-digit number" is just fine.The name "24-digit number" is just fine.
There are three such numbers: 12, 24 and 36.
72 is not a digit!