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Olivia Zeng

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2y ago

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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)


Is 2 palindromic?

No, the number 2 is not considered palindromic in the context of multiple digits. A palindromic number reads the same forwards and backwards. For single-digit numbers like 2, it remains the same, but palindromic typically refers to numbers with at least two digits, such as 121 or 1331. However, in a broader sense, any single-digit number can be seen as trivially palindromic.


What three digit number whose digits are all odd and different has a sum of the three digits that is palindromic?

137?


What are the 3 digits palindromic number?

A three-digit palindromic number is a number that reads the same forwards and backwards, consisting of three digits. These numbers take the form ( aba ), where ( a ) is any digit from 1 to 9 (to ensure it's a three-digit number), and ( b ) is any digit from 0 to 9. Examples include 101, 121, 131, and so on, up to 999. There are a total of 90 three-digit palindromic numbers.


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 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 smallest 4 digit palindromic number?

1001 is the smallest 4 digit palindromic number.


When you multiply a 3 digit number by a 2 digit number what is the greatest number of digits the product can have?

It can have up to 5 digits.


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 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.