11,051 Pages

The largest known perfect number is $$M_{51?}(\frac{M_{51?}+1}{2}) \approx 1.108478 \cdot 10^{49,724,094}$$, where $$M_{51?}$$ is $$2^{82,589,933} − 1$$, the largest known Mersenne prime, which is suspected to be the 51st Mersenne prime.[1][2]

## Sources

1. C. Caldwell, The Largest Known Primes. Accessed 2021-06-02.
2. C. Caldwell, Characterizing all even perfect numbers. Accessed 2021-06-02.
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