The longest number that would also be the smallest would be the highest number counted to just made into its negative form.
45
The smallest prime number is '2' (TWO).. It is also the only even prime number.
4, which is the square of the prime number 2, is the smallest composite number.
That would be the same as the smallest four-digit even number: 1,000, which also happens to be the smallest four-digit whole number.
4
45
To find the smallest possible number that satisfies both conditions, we need to find the least common multiple (LCM) of 4 and 7, which is 28. Adding 2 to the LCM gives us the smallest number that leaves a remainder of 2 when divided by both 4 and 7. Therefore, the smallest possible number is 30.
The smallest prime number is '2' (TWO).. It is also the only even prime number.
68686868
4, which is the square of the prime number 2, is the smallest composite number.
That would be the same as the smallest four-digit even number: 1,000, which also happens to be the smallest four-digit whole number.
4
01234 is, technically a 4-digit number. Also, 10234 is not the smallest 5 digit number. The smallest 5 digit [positive] number is 10000.
11
2
It is 11 which is also a prime number but if you meant -14 then that is the smallest number listed.
The smallest prime number in which all of the digits are also prime is 2.The smallest multi-digit prime number in which all of the digits are also prime is 23.