35132...77921 (10839-digits)
This number is a prime.
Just showing those entries submitted by 'Earls': (Click here to show all)
99235*1378^3451 + 1 is prime. Note that 99235 and 1378 are both triangular numbers whose reversals are prime, and that 3!+4!+5!+1! is prime. [Earls]
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