That is a difficult question
there are 2 Greek number systems
one uses letters like the Romans
x=1000 M=10000
the other uses letters of the Greek alphabet
for this method look at the link
http://www.gap-system.org/~history/HistTopics/Greek_numbers.html
1000 = M
1,000,000,000,000,000 (one quadrillion).
1000 more is 577233 1000 less is 575233
577233 and 575233 respectively
Write down the numbers from 1000 to 9999.
It is 1000.
If you take away 1000 from 503000019 you get 502999019.If you add 1000 to 503000019 you get 503001019.
Just successively divide both numbers by the same numbers and make sure they are whole numbers... 305/1000 = 61/200
1,000 billion billion is: 1,000,000,000,000,000,000,000
It is: (IX) which means 1000*9 = 9000
0.517 or 570/1000
On Converting between Arabic and Roman Numbers we get: 1000 in roman numerals is written as : M