3301
This number is a prime.
Just showing those entries submitted by 'Antonious': (Click here to show all)
The sum of the first 3301 positive repunits (i.e., 1+11+111+1111+...) is a 3301-digit prime number. Note
that 3301 is the first prime of which this happens. [Antonious]
Printed from the PrimePages <t5k.org> © G. L. Honaker and Reginald McLean