A palindrome is an integer that reads the same forwards as backwards. For example, 12321 is a palindrome and 12322 is not a palindrome. Determine the number of palindromes between 10 000 and 100 000 that are divisible by 15.
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Step 1
For a number to be divisible by 5, it must end in 0 or 5. Since we are looking for palindromes, the number must also start with 0 or 5. However, since we are looking for numbers between 10,000 and 100,000, the number cannot start with 0. Therefore, the number must Show more…
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A number is said to be a palindrome if it reads the same backwards as forwards (for example, 54845). How many 4-digit numbers are palindromes? There are 4-digit numbers that are palindromes. (Type a whole number)
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