Prime Games ended in 1997-03.
You end it when all the numbers are prime.
Prime Games was created in 1994-12.
Other than 2, no prime numbers are even. So prime numbers can't end in even numbers. After 5, no prime number can end in 5. After 5, all prime numbers end in 1, 3, 7 or 9.
Prime HD ended in 2010.
Prime Network ended in 1997.
Prime Airlines ended in 2002.
BBC Prime ended in 2009.
Opes Prime ended in 2008.
Prime Sports ended in 1993.
No.
No. If they end in 4, they are even numbers and divisible by 2, and therefore are not prime.
After 5, all prime numbers end with 1, 3, 7 or 9.