Prime Password

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Neo is the best BlackHat hacker in the world. He recieves a task to crack a 343 layer of security. After cracking 342 layers (WOW!), the last layer requires a password to be cracked. The password must be an 8-digit password, starting with 7, by placing digits x,y,z and so on such that 7x is prime, 7xy is prime, and so on. What will be the correct password? Input No Input Required... Output

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solution.cppC++17

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