Source: wikibot/automorphic-number
= Automorphic number
{wiki=Automorphic_number}
An automorphic number is a number whose square ends with the same digits as the number itself. In other words, if \\( n \\) is an automorphic number, then when you compute \\( n^2 \\), the last digits of \\( n^2 \\) will be the same as \\( n \\). For example: - The number 5 is automorphic because \\( 5^2 = 25 \\), and the last digit (5) matches the original number.