At this site Editor-in-Chief Chris Strolin is coordinating development of OEDILF: The Omnificent English Dictionary In Limerick Form. So far, definitions are available (and being submitted) for terms beginning with letter-pairs Aa - Fd -- and completion of the dictionary is predicted at the OEDILF website for 2043.
I have mentioned OEDILF before -- on 5 December 2012 and 29 March 2010. And today I offer a draft limerick about "factors" -- I am at this point, however, dissatisfied with my use of the plural rather than simply "factor." More work needed.
Whole numbers have factors called primes—
and factoring can take much time.
But when last digit’s “oh”
then we always know
there are factors of two and five.