8998
The smallest 3-digit palindrome number is 101.
101
1
The palindrome for the number 998 is 8998. A palindrome reads the same forwards and backwards, and by adding the digits of 998 together, you can create a new number that meets this criterion. In this case, reversing the digits of 998 and adding a '8' at the end forms the palindrome 8998.
One. If you mean "digits", the number can have any amount of digits; the only requirement to be called a "palindrome" is that if you read it backwards, you get the same sequence of digits. Thus, any of the following is a palindrome: 1 (any 1-digit number is a palindrome), 55, 121, 2002, 12321, 600006, 8105018, ... As you can see, you can make them arbitrarily large.
No. 101 is prime.
You write the number and then follow it with the digits in reverse order.
There is no number palindrome for 563. A number palindrome is a number which is the same number when the digits are taken in the reverse order. For example, 2002 is the number palindrome of 2002 as it reads the same no matter which way it is read. Whereas 563 when read in reverse is "365" which is not the same as "563". Therefore ,there is no number palindrome for 563.
The largest ten digit number with no repeated digits is '9876543210'.
838
0.5714
999