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Una Johns

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3y ago
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13y ago

A ten digit palindrome as the form

abcdeedcba

5 letters = 10^5 combinations = 100,000 palindromes

An eleven digit palindrome is the same as above with a new number in the middle:

abcdefedcba

6 letters = 10^6 combos = 1,000,000 palindromes

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Q: Are there more 10-digit or 11-digit palindromic numbers?
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What are the 13 non-palindromic three-digit numbers?

There are far more than 13 non-palindromic three-digit numbers. A palindrome is a word or number that is the same backwards as forwards; for example, 727. Thus, the FIRST thirteen non-palindromic three-digit numbers are 100, 102, 103, 104, 105, 106, 107, 108, 109, 110, 112, 113, and 114.


Which numbers have more than1 line of symmetry?

0 and 8 and any palindromic multi-digit number made using them. In some fonts, the number 1 also has more than 1 line of symmetry.


What is the number when multiplied by itself is equal to the square root of that number with reverse integers?

I think that the question is asking for palindromic square numbers, that is numbers that read the same backwards as forwards. 11² = 121 so √121 = 11 22² = 484 so √484 = 22 26² = 676 so √676 = 26 and there are many more numbers that produce this pattern :- 101²= 10201 121² = 14641 . . . and so on.


Do the product of two palindromes equal another palindrome?

Not as a rule. It does occur sometimes, as in 11x22=242. But more often than not, the product will not be palindromic.


Are there more 11 digit or 12 digit palindromic numbers?

There are the same number: any twelve digit palindrome is just an eleven digit palindrome with its central digit repeated. In general, if we are considering numbers of n digits: For even values of n, the number of palindromes is 9 x 10n/2 - 1 For odd values of n, the number of palindromes is 9 x 10(n-1)/2


Are there more composite or prime numbers?

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Are there more deficient numbers than abundant and perfect numbers?

There are more deficient numbers.


Does even or odd numbers have more factors?

Some even numbers have more factors than some odd numbers and some odd numbers have more factors than some even numbers. As a group, even numbers have more factors than odd numbers.


Do odd or even numbers have more factors?

Some even numbers have more factors than some odd numbers and some odd numbers have more factors than some even numbers. As a group, even numbers have more factors than odd numbers.


Why are there more composite numbers than prime numbers?

composite numbers are mostly even and to me even numbers are more and yea


Why is there more composite numbers than prime numbers?

There are more composite numbers than prime numbers because most numbers have more factors than just 1 and a number itself.


Complete the phrase with a palindrome 'no devils lived '?

the phrase 'no devils lived on' is palindromic. Maybe a more attractive longer phrase could be created by inserting letters in places other than at the end.