$10.51, 6 times a month.

The number is probably the exact amount to cover taxes on some other benefit, after taking out taxes on the salary itself.

The best I can come up with is $31.53 per pay period. That seems just as mysterious, however.

Yes, that was the question. Thought it might be a multiple of some arcane physical constant.

The answer will probably pop up on Quora soon - behind a registration wall no doubt.

http://www.quora.com/Groupon

And yeah, it could be a number broken down per year, per month, per week, per day, per hour.