0.26960635197167...

This number is neither prime nor composite.

Single Curio View:   (Seek other curios for this number)
The constant pri = 1/2 - 1/3 + 1/5 - 1/7 + 1/11 - 1/13 + ... = 0.26960635197167... .

Submitted: 2025-03-04 23:10:20;   Last Modified: 2025-03-05 23:28:39.
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