leysnum
leysnum is a term that has gained some traction in online communities, particularly within discussions related to mathematics and recreational number theory. It refers to a specific type of integer with a property that has sparked interest among enthusiasts. The defining characteristic of a leysnum is that it is a positive integer which, when its digits are squared and then summed, results in a number that is also a leysnum. This creates a recursive or self-referential property within the sequence of numbers that satisfy the condition.
The concept of leysnum is often explored through iterative processes. Starting with any positive integer, one
A number is considered a leysnum if the sequence generated by this digit-squaring process eventually enters