Discovery of the Prime Number Equation

【Abstract】　 I found a prime number equation. All prime numbers except 2 and 3 are expressed by the following formula. (a = positive integer, t = prime number etc.) For other positive integers(a), t is an irrational number. As an exception, This generates all prime numbers except 2 and 3, but also generates a composite number of prime numbers and irrational number. The composite number of the prime has regularity.