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Can Users of RSA run out of Distinct Primes?

Answer:

There are enough prime numbers that RSA users will never run out of them. The Prime Number Theorem states that the number of primes less than or equal to n is asymptotically n/log n. This means that the number of prime numbers of length 512 bits or less is about 10150, which is a number greater than the number of atoms in the known universe.

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