Table of Contents
What are the palindrome numbers between 1 to 1000?
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 11, 22, 33, 44, 55, 66, 77, 88, 99, 101, 111, 121, 131, 141, 151, 161, 171, 181, 191, 202, … (sequence A002113 in the OEIS).
What are the palindromic numbers between 1000 and 9999?
Percentage
Number of digits | Range of numbers | Cumulative palindromic numbers |
---|---|---|
1 | 0-9 | 10 |
2 | 10-99 | 19 |
3 | 100-999 | 109 |
4 | 1000-9999 | 199 |
How many prime numbers are there upto 25?
Answer: 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97.
How many palindromic numbers are there between 10 and 1000 both inclusive?
11,22,33,44,55,66,77,88,99,101,111,121,131,141,151,161,171,181,191,202,212.222.
How many palindromic numbers are there between 100 and 200?
Between 0 and 100 there are five palindromic primes: 2, 3, 5, 7, and 11. Every other palindrome in this interval is a multiple of 11. Between 100 and 1000, there is one palindrome in every ten numbers. 101, 131, 151, 181, and 191 are prime, but 111, 121, 141, 161 and 171 are not — these are the only palindromes between 100 and 200.
What is a palindromic prime number?
Palindromic Primes. A palindromic prime (sometimes called a palprime) is a prime number that is also a palindromic number. Given a number n, print all palindromic primes smaller than or equal to n. For example, If n is 10, the output should be “2, 3, 5, 7′. And if n is 20, the output should be “2, 3, 5, 7, 11′.
How many palindromes are there of even and odd length?
By reasoning similar to above there are 99 palindromes of even length with at most 4 digits, so there must be 990 palindromes of odd length with at most 5 digits, plus the special case of one digit: 9. (or 10 if you count 0). So there are 999 + 990 + 9 = 1998 palindromes.
What is the number of palindromes of Type X?
Now, since 1, 000, 000 is itself not a palindrome, so we consider integers till only 6 digits. To find number of palindromes of type x is easy, its 9.