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There are 900 of them. That is too long a list for me, but you can generate it yourself:
The first digit can take any value from the set {1, 2, 3, 4, 5, 6, 7, 8, 9}.
For each possible value of the first digit, the second digit can take any value from the set {0, 1, 2, 3, 4, 5, 6, 7, 8, 9}.
For each possible combination of the first two digits, the third digit can take any value from the set {0, 1, 2, 3, 4, 5, 6, 7, 8, 9}.
Then the fourth digit is the same as the second digit and the fifth digit is the same as the first digit.
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How many 5 digit palindromes are there?
900 This explains it. A positive integer is a palindrome if it reads the same forward and backwards such as 1287821 and 4554. Determine the number of 5-digit positive integers which are NOT palindromes. We start by counting the total number of 5 digit positive integers. The first digit is between 1 and 9, so we have 9 choices. Each of the other 4 digits can be anything at all (10 choices for each). This gives us 9(10)4 = 90000 five-digit positive integers. Now we need to count the number of 5 digit palindromes. Again, we have 9 choices for the first digit and 10 choices for each of the next two. The tens and units digits however are fixed by our choices so far. Therefore, there are only 900 five-digit palindromes. Therefore, the total number of five-digit positive integers which are not palindromes is 90000-900 = 89100.
How many palindromes have 6 digits?
There are 900 6-digit palindromes.
How many five digit even palindromes are there?
Well, isn't that a happy little question! To find out how many five-digit even palindromes there are, let's break it down. A five-digit number has the form ABCBA, where A, B, and C are digits. Since the number is even, A must be even. So, there are 5 options for A (0, 2, 4, 6, 8), 10 options for B (0-9), and 1 option for C. Multiply these options together and you'll find the total number of five-digit even palindromes.
How many 5 digit palindromes equal the sum of 18?
35.
How many palindromes are there between 900 - 1900?
-1000
