NPR Sunday Puzzle (Mar 12, 2023): Around the WorldQ: This week's challenge is a spinoff of the on-air puzzle. Name two countries that have "consonyms" that are nationalities of other countries. In each case, the consonants in the name of the country are the same consonants in the same order as those in the nationality of another country. No extra consonants can appear in either name. The letter Y isn't used.
If I add up the years that each of my four countries became members of the U.N. and divide by 5, I get a prime number.
Edit: My countries were Lebanon (1945), Albania (1955), Cameroon (1960) and Comoros (1975). The sum is 7835 and the prime is 1567. My list of nationalities separated North and South Korea, so I didn't get the more obvious answer of UKRAINE and KOREAN.
A: LEBANON → ALBANIAN (from Albania)
UKRAINE → KOREAN (from N. or S. Korea)
CAMEROON → COMORAN/COMORIAN (from Comoros)
MAURITANIA → MAURITIAN (from Mauritius)
RÉUNION → IRANIAN (from Iran)
Any others?