[saas_sam]

It wouldn't have to do any of that if it was simply keeping an activity:non-activity ratio that resulted in 2 primes. I'm not sure to what degree of precision this flashing is happening but if it's very precise then there you go. 2 primes result no matter what your day/timescale/number system is.

[SketchySeaBeast]

But it's not, it's active for 90 days. You'd think they'd go for the trio.

[ncmncm]

Good one. It is rare that two primes can be added to get a third prime. And one of them is always 2. :-)

[SketchySeaBeast]

Admittedly, the options are more limited.