52106...35221 (79-digits)

This number is a prime.

                                                                   521064401
5679228794 0606943253 9095585333 5898483908 0564583521 8385101837 2555735221

+ 180(2127 - 1)2 + 1. The first prime proven by computer to hold the title of largest known prime. It was discovered in 1951 by J.C.P. Miller and D. J. Wheeler, using a British computer called EDSAC (Electronic Delay Storage Automatic Calculator).

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