This is VERY INTERESTING!

[KJ]

This is VERY INTERESTING!

Letters 'a', 'b', 'c' 'd' do not appear anywhere in the spellings of 1 to 99, (Letter 'd' comes for the first time in Hundred)


Letters 'a', 'b' 'c' do not appear anywhere in the spellings of 1 to 999, (Letter 'a' comes for the first time in Thousand)


Letters 'b' 'c' do not appear anywhere in the spellings of 1 to 999,999,999, (Letter 'b' comes for the first time in Billion)

And

Letter 'c' does not appear anywhere in the spellings of entire English Counting numbers

[krishj]

indeed an interesting stuff

[Taratele]

tfs..

[ButterflyOfFire]

nice 1 kj