unprimeable

adj — 2 senses

unprimeable

adj

1

Arithmetic That cannot be turned into a prime number by changing just one of its digits to any other digit.

In the year 200 Diophantus, noted Greek mathematician was born. 200 million is approximately 2/3 of the total population of this country we call home. 200 is also the smallest base 10 unprimeable number.2007 May 26, “Episode #200”, in Game Show Newsnet:
6,292,015 is a composite, Duffinian, odd, semiprime, square-free and unprimeable number.2015 June 29, “Brain-O Quiz Answers”, in Mathematical Mystery Tour:

2 more examples

200 is the smallest unprimable number2015 November 1, Adam Spencer, Adam Spencer's World of Numbers, Xoum Publishing, page 200:
There are infinitely many unprimeable numbers, although the first unprimeable number ending in an odd number is not until 212159.2019, Julia Collins, Numbers in Minutes:

2

That cannot be primed.

In this count, the Syntactic sentences actually had more "unprimeable" words than the Random, 86 versus 74.1989, Cyma K. Van Petten, Context Effects in Word Recognition, page 215:
General purpose of materialman's lien statutes is to give contractors a lien that is unprimeable by subsequently entered consensual mortgage agreements.1999, “C.A.6(Ky.) 1996”, in West's Federal Practice Digest, volume 77, number 4, West Publishing Company:

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