Additive Persistence Calculator

Sum digits to one

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About Additive Persistence Calculator

An additive persistence calculator showing the full chain of digit sums until reaching a single digit (digital root). Unlike multiplicative persistence, additive persistence is unbounded — you can make it arbitrarily large. Client-side.

Additive Persistence Calculator Features

  • Digit sum chain
  • Step count
  • Digital root
  • Comparison
  • Step breakdown

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