Recently while browsing MetaStackoverflow, I've encountered a very funny and unusual question:Jon Skeet Facts.
Now I want to know, if a Legendary Badge can be awarded to a user multiple times, how many Legendary Badge does he own?
How many legendary badges does Jon Skeet have
As Oded correctly says the legendary badge can only be awarded once, and so Jon Skeet has exactly 1 legendary badge.
If you could have multiple legendary badges how many would Jon Skeet have
Jon Skeet has been with us for exactly 1880 days. During that time there have only been 15 sad days on which he hasn't got 200+ reputation. These days are
Note that after 2009; Christmas day is not one of the non 200+ scoring days. (NB Jon Skeet's old answers receive sufficient upvotes that he doesn't have to be physically on Stack Overflow to hit the cap)
As such Jon skeet has 1865 qualifying days which would equate to 12 legendary badges (To put this into context the total number of legendary badges ever awarded is 150)
That badge can only be earned once.
It is not hidden information either. If you go to his profile page on Stack Overflow, click the badges tab and keep going till you find it. It will tell you how many times a badge has been earned (only if it has been earned more than once).