Interesting Facts of English Counting

The letters ‘A’, ‘B’, ‘C’ and ‘D’ are not visible anywhere in 1 to 99 characters.

The letter comes in ‘D’ hundred for the first time.

Letters ‘A’, ‘B’ and ‘C’ do not show anywhere in 1 to 999 characters.

Letter ‘A’ comes for the first time in thousands.

The characters ‘B’ and ‘C’ are not visible anywhere in the 999 999 999 spelling.

The letter ‘B’ comes first in billions.

And

The letter ‘C’ does not fully appear anywhere in the spelling of English mathematics.