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Q: How many palindromic numbers in 100-1000?

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There are 90 palindromic numbers.

There are 90 palindromic numbers between 100 and 1000

infinite

There are not just 13 non-palindromic numbers. Most numbers are non-palindromic.

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)

There are 900000 of them.

90

9

25001

10

1089

1089

A palindromic number can have as few as one digit, and as many as infinity. The smallest palindromic number is zero and the largest is '999... to infinity'.

There are 9 palindromic numbers between 0 and 100: 11, 22, 33, 44, 55, 66, 77, 88 and 99.

1089 palindromes

10x10x9 = 900 ans.

500

Nobody went out to create them: some numbers simply happen to be palindromic and others don't.

Twenty.

The palindromic numbers between 900 and 1900 are:909919929939949959969979989999100111111221133114411551166117711881This is a total of 19 numbers.

including 2000 it's 1001000

11000

No.

410

1111 is the only one.