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Can a 1 or 2 digit number be palindromic?
Yes.
Is 303 a prime number?
No, 303 is divisible by 3, 303 = 101 x 3; and also = 303 x 1. Since it has factors in addition to 1 and itself it is not prime.
How do you write the number centillion?
what ever number followed by 303 zero's. Ex: 1 (and 303 0's.)
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.
The smallest non-palindromic number whose square is a palindrome?
That would be 26 . . . its square is 676.There are two smaller palindromic squares . . . 121 and 484 ... but they're the squares of11 and 22 respectively, which are palindromic, so they flunk the question's specifications.
