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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)

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โˆ™ 2011-05-18 23:15:20
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Q: How many 8 digit palindromic numbers are there?
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