Lychrel number

noun

Lychrel number

noun

Etymology Coined by Wade Van Landingham as a rough anagram of Cheryl, his girlfriend's first name.

1

Mathematics, Sciences A natural number that cannot form a palindrome through the iterative process of repeatedly reversing its digits and adding the resulting numbers.

  • In base ten (decimal), no Lychrel numbers have been yet proved to exist, but many are suspected.

Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.