1018
The root is epony
Exa is not a measurement unit. It is a prefix which means a quintillion or 10^18. So, for example,an exametre is a quintillion metres or approx 106 light years;the mass of the moon is approx 73 exatonsan exasecond is approx 32 billion years, or more than twice the age of the universe.
At least in Europe it would be Exa- (=1018) (http://en.wikipedia.org/wiki/SI_prefix)
After tera (10^12) comes peta, which is 10^15, followed by exa, which is 10^18.
Exa Corporation (EXA) had its IPO in 2012.
As of July 2014, the market cap for Exa Corporation (EXA) is $124,756,108.56.
The symbol for Exa Corporation in NASDAQ is: EXA.
Romulus is the eponym of Rome
Is odyssey a eponym or a toponym
Exa Corp. was created in 1992.
The Edsil automobile was the eponym of Henry Ford's son.
Julius Cesar is the eponym for the month of July.
Eponym.
Shining Force EXA happened in 2007.
There were many Ihagee Exa models made around 1960. Original exa value would be about $84 - 129. Exa I ($48-66) and Exa Ia ($30-48) were also manufactured in the 1960s.
Exa denotes a value of 10 to the power of 18. If one would have "1 exa" apples, for example, one would have 10 ^ 18 apples. 2 exa apples is 2 * 10 ^ 18 apples.