Interesting Facts About Numbers

The letters A, B, C and D do not appear in the spelling of 1 to 99 (That is ONE, TWO, .. NINETY NINE). The letter D appears the first time in HUNDRED. The letter A appears the first time in THOUSAND. The letter B appears the first time in BILLION. The letter C appears the first time in CORER. Very interesting isn’t it? Share here if you know any interesting facts about numbers.