Automorphic numbers
An automorphic number is a number whose square ends in the digits of the number itself. For example, 625 × 625 = 390625 ends in the digits 625, and 376 × 376 = 141376 ends in the digits 376. There ar…
An automorphic number is a number whose square ends in the digits of the number itself. For example, 625 × 625 = 390625 ends in the digits 625, and 376 × 376 = 141376 ends in the digits 376. There ar…