26188...36639 (8215-digits)
This number is a prime.
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53465*2^27272-1 is prime. This is the first prime at the Prime Curios! site to have between 8000 and 8999 digits. Note that 27272 is a smoothly undulating number. Also, when you sum the squares of the digits of 53465*2^27272-1 you get the prime 234743. [Earls]
Submitted: 2004-08-09 11:38:43; Last Modified: 2008-01-30 17:28:00.
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