42857...57143 (68-digits)
This number is a prime.
42857142 8571428571 4285714285 7142857142 8571428571 4285714285 7142857143
The prime number ((3 x 1068) + 1)/7 contains the first 68 digits of the decimal expansion of 3/7 rounded up. [Glenn]
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell