

If you want it to be useful for the economy and industry in order to warrant funding, I’ve got news for you:
The majority of modern encryption relies on prime numbers. It is currently speculated but not known, that the number of prime numbers is infinite.
Should it be proven, that there are only a finite amount of prime numbers, all encryption would become vulnerable.
And Austria is missing from the German numbers.
The numbers for Germany and Switzerland seem low. CH has 8M inhabs and more than a third are German speakers. DE has 84M inhabs and even 30% of immigrant families speak exclusively German at home.
So I would guess more like 77M + 7M + 4M