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How many 8 digit palindromic numbers are there?
a 8-digits palindromic number is a number consisting of a 4-digits number written and then written backward, i.e. 1234 4321 so there are as many palindromic 8-digits numbers as 4-digits numbers so from 1000 to 9999, so there are 8999 palindromic 8 digits number (I assumed that 00011000 is not to be considered as a valid 8 digit number)
How many 3-digit palindromic numbers are there?
To be a 3 digit palindromic number, it must be of the form aba.I assume that a 3 digit number must be at least 100 (so that 020 for example does not count as a 3 digit number):a can be any of the nine digits 1-9;for each of these b can be any of the ten digits 0-9Thus there are 9 x 10 = 90 three digit palindromic numbers.
What 3 digit palindromic number has digits that add to 17 and multiply to 180?
656
What is the sum of the digits of the largest 4-digit palindromic number which is divisible by 15?
-11
Is a 10 digit palindromic number bigger than a 11 digit palindromic number?
No.
What is the maximum number of different three digit palindromes you can make using any digit?
There are 10 digits, but for a three digit number the first number cannot be a 0. Thus: there is a choice of 9 digits for the first (and last digit which must be the same), with 10 choices of digit for the second (middle) digit, making 9 × 10 = 90 such palindromic numbers.
What is smallest 4 digit palindromic number?
1001 is the smallest 4 digit palindromic number.
Are there more 11 digit or 12 digit palindromic numbers?
There are more 12-digit palindromic numbers than 11-digit palindromic numbers. This is because the number of possible 12-digit palindromic numbers is greater than the number of possible 11-digit palindromic numbers. In general, the number of palindromic numbers of length n is 9 * 10^((n-1)/2), so for 11-digit palindromic numbers, there are 9 * 10^5 = 900,000 possibilities, while for 12-digit palindromic numbers, there are 9 * 10^6 = 9,000,000 possibilities.
How do you generate 3-digit palindromic number?
Let the first and third digits be equal. Choose any other number as the second digit. 202, 919, etc.
What is the smallest three-digit number with all the digits different?
102 is the smallest three digit number with different digits.
Smallest 8 digit number with 3 different digits?
smallest 8 digit number with three different digits
What is the greatest seven-digit number using four different digits?
9,999,876 is the greatest seven-digit number using four different digits.
