Definitions
from The Century Dictionary.
- Consisting of a base or root or first power plus a higher power.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- adjective mathematics Of a number which is the product of two consecutive
integers
Etymologies
from Wiktionary, Creative Commons Attribution/Share-Alike License
Apparently from New Latin pronicus, a misspelling of Latin promicus, from Ancient Greek (promekes, "rectangular"), but the spelling has been pronic from its earliest known occurrence in English ((Can we date this quote?) Leonard Euler, Opera Omnia, series 1, volume 15).
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Examples
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The number 600 is a pronic number, which means that it is the product of two consecutive numbers, namely 24 and 25.
Izabella's Blue 2008
ruzuzu commented on the word pronic
"A pronic number is a number which is the product of two consecutive integers, that is, a number of the form n(n + 1). The study of these numbers dates back to Aristotle. They are also called oblong numbers, heteromecic numbers, or rectangular numbers; however, the "rectangular number" name has also been applied to the composite numbers."
-- https://en.wikipedia.org/w/index.php?title=Pronic_number&oldid=850129619
August 29, 2018