0.269606351971674...
This number is neither prime nor composite.
1/2 - 1/3 + 1/5 - 1/7 + 1/11 - 1/13 + ... = 0.269606351971674 ... .
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell
This number is neither prime nor composite.
1/2 - 1/3 + 1/5 - 1/7 + 1/11 - 1/13 + ... = 0.269606351971674 ... .