[QUOTE=bbb120;563580]all Chinese four digits separated number [/QUOTE]

I did not know that!

[QUOTE=bbb120;563580]I am not familiar with three digits separated number ,all Chinese four digits separated number , so I make a mistake[/QUOTE]The "English" groupings correspond to the named amounts:
1,000 = One Thousand
2,000,000 = Two Million
3,000,000,000 = Three Billion (bi-, meaning 2 in Greek)
4,000,000,000,000 = Four Trillion (tri- = 3)
5,000,000,000,000,000 = Five Quadrillion (quad = 4)
etc.

India has an odd system.

[QUOTE=Prime95;563590]I did not know that![/QUOTE]

chinese
10,000=1万=10 thousand
100,000,000=1亿=100 million

123456789123456789=123_456_789_123_456_789(English)
123456789123456789=12_3456_7891_2345_6789(chinese)
English grouping digits three by three，
but Chinese grouping digits four by four

Billion had two different meanings in English and French Canada:

[url]https://en.m.wikipedia.org/wiki/Billion[/url]

We knew about Chinese system (we used to work in China few years at the end of the last century). Thai system is also odd, they group them [URL="https://en.wikipedia.org/wiki/Thai_numerals#Ten_to_a_million"]by 6 digits[/URL]. In fact, this, same as in Indian dialects, comes from Sanskrit. In fact, they also "shorten" it in speech, ignoring the "small quantities", for example, you may see 1 506078, but they will say "laan haa", which is textual "million five" (i.e. one million, five hundred something) unless the accuracy is especially required (like accounting, banking, invoices, etc).

[QUOTE=a1call;563611]Billion had two different meanings in English and French Canada:

[url]https://en.m.wikipedia.org/wiki/Billion[/url][/QUOTE]Still does in much of Europe where the term "milliard" is still used for 1e9.

[QUOTE=xilman;563690]Still does in much of Europe where the term "milliard" is still used for 1e9.[/QUOTE]There is a myriad different number naming and notation schemes.

[QUOTE=Uncwilly;563703]There is a myriad different number naming and notation schemes.[/QUOTE]

Just be glad we are not using the Roman Numeral system. What a mess that would be.

[QUOTE=storm5510;563764]Just be glad we are not using the Roman Numeral system. What a mess that would be.[/QUOTE]
I have [attach]23814[/attach] problems, but Roman numerals ain't one of them.

[QUOTE=storm5510;563764]Just be glad we are not using the Roman Numeral system. What a mess that would be.[/QUOTE]Be thankful for the existence of dozenal and sexagesimal representations.

[QUOTE=Uncwilly;563785]I have <snip attachment link> problems, but Roman numerals ain't one of them.[/QUOTE]

Hmm, rings a bell.[indent][color=darkred]That girl has problems, bein' heard ain't one of 'em .[/color][/indent]-- Ethel Merman, referring to Janis Joplin