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This number is a prime.
The largest known Mills' prime: ((((((2521008887^3+80)^3+12)^3+450)^3+894)^3+3636)^3+70756)^3+97220. Proven by Morain with ECPP in 2006, this prime surpassed the previous general prime record by over 5000 digits. [Caldwell]
The largest known ordinary prime at the time of its discovery (June 2006). [Caldwell]
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell