4
6 is the only perfect digit. The next perfect number is 28.
Place value only makes sense for a single digit - not a 4-digit number!
The only other single-digit number higher than 5 which is a prime number is 7 - 9 is equal to 3 squared, and is thus not a prime number.
A number cannot have a place value, only a single, specified digit in a number can.
4
6 is the only perfect digit. The next perfect number is 28.
Place value only makes sense for a single digit - not a 4-digit number!
A 3-digit number cannot have a pace value. Only a single digit can.
7 * * * * * What? 73 = 343 which is the square of 18.52... hardly a perfect square! The correct answer is 9.
The only other single-digit number higher than 5 which is a prime number is 7 - 9 is equal to 3 squared, and is thus not a prime number.
Its impossible, there are only 5 single digit numbers that are not prime
A number cannot have a place value, only a single, specified digit in a number can.
A number does not have a place value - only a single digit within a number does.
Yes. The zero is only acting as a place holder.
It depends on the number of people who voted.
no, only single digit numbers are 8,3,1, and 0