Read it backwards.
121
Out of the three options: 121, 309, and 6767, 121 is the number that creates a palindrome. It can be read the same forwards and backwards.
11 is a palindrome. 11 squared (i.e., 11 times 11) is 121, which is also a palindrome.
19 is a two step palindrome because it takes two steps or two addition sums to make it a palindrome. Step 1 is 19 plus 91 equals 110. Step 2 110 plus 011 is equal to 121 and 121 is a palindrome.
11 is a palindrome.11 squared (i.e., 11 times 11) is 121, which is also a palindrome.
121
Out of the three options: 121, 309, and 6767, 121 is the number that creates a palindrome. It can be read the same forwards and backwards.
11 is a palindrome. 11 squared (i.e., 11 times 11) is 121, which is also a palindrome.
4 or 121
19 is a two step palindrome because it takes two steps or two addition sums to make it a palindrome. Step 1 is 19 plus 91 equals 110. Step 2 110 plus 011 is equal to 121 and 121 is a palindrome.
11 is a palindrome.11 squared (i.e., 11 times 11) is 121, which is also a palindrome.
121
Palindrome words: madam, peep, Otto, racecar, rotator Palindrome numbers: 121, 265,562, 74,947, 8,030,308
112 = 121
Ones that read the same backwards and forwards, like 45654.
You can do this: <?php if ( $word === strrev( $word ) ) { echo "The word is a palindrome"; } else { echo "The word is not a palindrome"; }
121 is perfect three digit square palindrome. (11 x 11) So is 484 (22 x 22) and 676 (26 x 26)