Word.ws English Dictionary

friendly numbers

friendly numbers is the plural of friendly number.

Meaning of friendly number

Noun

friendly number (plural friendly numbers)

  1. A number that shares its abundancy with another positive integer.
    • The number 30 is a friendly number because both 30 and 140 have an abundancy index of 2.4.

Questions about friendly numbers

What is friendly numbers the plural of?
Friendly numbers is the plural of friendly number.

Words near friendly numbers in the dictionary

  1. friendly match
  2. friendly matches
  3. friendly name
  4. friendly names
  5. friendly number
  6. friendly numbers
  7. friendly societies
  8. friendly society
  9. friendly suit
  10. friendly suits
  11. friendly URL

Source and license

Adapted from Wiktionary: friendly numbers (page history and authors); friendly number (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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Cite this entry: “friendly numbers.” Word.ws, https://word.ws/friendly_numbers. Based on Wiktionary, CC BY-SA 4.0.