India uses it's own numbering system as well as the familiar western system of thousands, millions, and billions. They write the same number of ones and zeroes to represent say one million, but they put the commas in different places!
- One thousand is the same for India and us, i.e. "1,000".
- The indian "lakh" is one hundred thousand, written "1,00,000".
- The indian "crore" is one hundred lakhs, written "1,00,00,000".
- The indian "arab" is one hundred crores, written "1,00,00,00,000".
To convert these indian units back to a more familiar form you would just move the commas to the usual places, so a crore becomes ten million, and an arab one billion.
